SG11201901008QA - Integrated ultrasonic testing and cathodic protection measurement probe - Google Patents

Integrated ultrasonic testing and cathodic protection measurement probe

Info

Publication number
SG11201901008QA
SG11201901008QA SG11201901008QA SG11201901008QA SG11201901008QA SG 11201901008Q A SG11201901008Q A SG 11201901008QA SG 11201901008Q A SG11201901008Q A SG 11201901008QA SG 11201901008Q A SG11201901008Q A SG 11201901008QA SG 11201901008Q A SG11201901008Q A SG 11201901008QA
Authority
SG
Singapore
Prior art keywords
thuwal
rpic
bldg
room
king
Prior art date
Application number
SG11201901008QA
Other languages
English (en)
Inventor
Fadl Abdellatif
Hamad Al-Saiari
Ali Outa
Ayman Amer
Sahejad Patel
Ameen Obedan
Hassane Trigui
Original Assignee
Saudi Arabian Oil Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saudi Arabian Oil Co filed Critical Saudi Arabian Oil Co
Publication of SG11201901008QA publication Critical patent/SG11201901008QA/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
    • B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
    • B63G8/001—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/04—Controlling or regulating desired parameters
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/22—Monitoring arrangements therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
    • G01B17/025—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness for measuring thickness of coating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/043—Analysing solids in the interior, e.g. by shear waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/225—Supports, positioning or alignment in moving situation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/225—Supports, positioning or alignment in moving situation
    • G01N29/226—Handheld or portable devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2437—Piezoelectric probes
    • G01N29/245—Ceramic probes, e.g. lead zirconate titanate [PZT] probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
    • G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0092—Measuring current only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
    • B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
    • B63G8/001—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations
    • B63G2008/002—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations unmanned
    • B63G2008/005—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations unmanned remotely controlled
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
    • C23F2213/30—Anodic or cathodic protection specially adapted for a specific object
    • C23F2213/31—Immersed structures, e.g. submarine structures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G01N2291/0231—Composite or layered materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G01N2291/0234—Metals, e.g. steel
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02854—Length, thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/10—Number of transducers
    • G01N2291/101—Number of transducers one transducer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Environmental Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ecology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Prevention Of Electric Corrosion (AREA)
SG11201901008QA 2016-09-15 2017-04-26 Integrated ultrasonic testing and cathodic protection measurement probe SG11201901008QA (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201662395162P 2016-09-15 2016-09-15
US15/342,791 US10234375B2 (en) 2016-09-15 2016-11-03 Integrated ultrasonic testing and cathodic protection measurement probe
PCT/US2017/029692 WO2018052488A1 (en) 2016-09-15 2017-04-26 Integrated ultrasonic testing and cathodic protection measurement probe

Publications (1)

Publication Number Publication Date
SG11201901008QA true SG11201901008QA (en) 2019-03-28

Family

ID=61559781

Family Applications (2)

Application Number Title Priority Date Filing Date
SG11201901008QA SG11201901008QA (en) 2016-09-15 2017-04-26 Integrated ultrasonic testing and cathodic protection measurement probe
SG10202006346TA SG10202006346TA (en) 2016-09-15 2017-04-26 Integrated Ultrasonic Testing and Cathodic Protection Measurement Probe

Family Applications After (1)

Application Number Title Priority Date Filing Date
SG10202006346TA SG10202006346TA (en) 2016-09-15 2017-04-26 Integrated Ultrasonic Testing and Cathodic Protection Measurement Probe

Country Status (8)

Country Link
US (2) US10234375B2 (enExample)
EP (1) EP3513142A1 (enExample)
JP (1) JP2019531477A (enExample)
KR (1) KR20190046773A (enExample)
CN (1) CN109564090B (enExample)
SA (1) SA519400946B1 (enExample)
SG (2) SG11201901008QA (enExample)
WO (1) WO2018052488A1 (enExample)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10234375B2 (en) * 2016-09-15 2019-03-19 Saudi Arabian Oil Company Integrated ultrasonic testing and cathodic protection measurement probe
US10989529B2 (en) * 2016-09-15 2021-04-27 Saudi Arabian Oil Company Magnetically coupled integrated ultrasonic testing and cathodic protection measurement probe
US12358141B2 (en) 2016-12-23 2025-07-15 Gecko Robotics, Inc. Systems, methods, and apparatus for providing interactive inspection map for inspection robot
EP3974823B1 (en) 2016-12-23 2024-03-06 Gecko Robotics, Inc. Inspection robot
US11307063B2 (en) 2016-12-23 2022-04-19 Gtc Law Group Pc & Affiliates Inspection robot for horizontal tube inspection having vertically positionable sensor carriage
US12162160B2 (en) 2016-12-23 2024-12-10 Gecko Robotics, Inc. System, apparatus and method for improved location identification with prism
US11673272B2 (en) 2016-12-23 2023-06-13 Gecko Robotics, Inc. Inspection robot with stability assist device
US10481134B2 (en) 2017-07-05 2019-11-19 Saudi Arabian Oil Company Underwater vehicles with integrated surface cleaning and inspection
USD915291S1 (en) * 2018-06-15 2021-04-06 Fluke Corporation Panel adapter for voltage and current measurement
PL3708482T3 (pl) * 2019-03-13 2023-09-11 Becker Marine Systems Gmbh Ster do jednostek pływających z przyrządem do pomiaru luzu łożyskowego, sposób pomiaru luzu łożyskowego w sterze oraz przyrząd do pomiaru luzu łożyskowego steru
CN114026381A (zh) * 2019-06-24 2022-02-08 迈克尔·詹金斯 厚度测量系统和方法
KR102437221B1 (ko) * 2020-08-26 2022-08-29 한국표준과학연구원 휴대용 판상소재 내부 균열 영상화장치
CN114343600A (zh) * 2021-03-12 2022-04-15 中国人民解放军空军军医大学 颅内脑血流持续监测局部固定装置
US11865698B2 (en) 2021-04-20 2024-01-09 Gecko Robotics, Inc. Inspection robot with removeable interface plates and method for configuring payload interfaces
US12566158B2 (en) 2021-04-22 2026-03-03 Gecko Robotics, Inc. Robotic systems for ultrasonic surface inspection using shaped elements
WO2022226222A1 (en) 2021-04-22 2022-10-27 Gecko Robotics, Inc. Systems, methods, and apparatus for ultra-sonic inspection of a surface
JP7792970B2 (ja) * 2021-05-25 2025-12-26 プロセク ソシエテ アノニム 試験体のｎｄｔ試験方法
CA3230842A1 (en) * 2021-09-03 2023-03-09 National Research Council Of Canada Sensor connectors
JPWO2024048072A1 (enExample) * 2022-08-29 2024-03-07
WO2024097795A2 (en) * 2022-11-01 2024-05-10 Gecko Robotics, Inc. Inspection robot with profile adapting sled, couplant reduction film and transducer pod for thick assets
WO2024138219A2 (en) 2022-12-23 2024-06-27 Gecko Robotics, Inc. Systems, methods, and apparatus for inspection of a surface using sensor holder with dual linear phased array of ultra-sonic elements
WO2025170546A1 (en) * 2024-02-07 2025-08-14 Rovula (Thailand) Co., Ltd. Systems, devices, and methods for performing inspections
CN120626988B (zh) * 2025-08-13 2025-10-10 中北大学 一种高温管道轴向自动扫查装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59100860A (ja) * 1982-12-02 1984-06-11 Fuji Electric Corp Res & Dev Ltd 超音波探傷用探触子の保持機構
JPS60169577A (ja) * 1984-02-10 1985-09-03 Mitsubishi Heavy Ind Ltd 船体外板の防食・防汚方法
JPH051764Y2 (enExample) * 1986-10-21 1993-01-18
JP2566241Y2 (ja) * 1991-07-19 1998-03-25 中部電力株式会社 超音波探触子押付け装置
JPH0611329A (ja) * 1992-06-27 1994-01-21 Asahi Glass Co Ltd 接触型超音波厚さ計
US5576492A (en) * 1995-01-26 1996-11-19 United Technologies Corporation Mechanical contour follower
US6317387B1 (en) 1997-11-20 2001-11-13 D'amaddio Eugene R. Method and apparatus for inspecting a submerged structure
NO312567B2 (no) * 1999-05-27 2002-05-27 Halfwave As Fremgangsmate ved maling av materialtykkelsesfordeling
GB0910603D0 (en) 2009-06-19 2009-07-29 Active Offshore Solutions Ltd Improvements relating to submersible vehicles
JP4526046B1 (ja) * 2010-01-21 2010-08-18 株式会社Ｉｈｉ検査計測 ガイド波を用いた検査方法
US8805579B2 (en) 2011-02-19 2014-08-12 Richard Arthur Skrinde Submersible robotically operable vehicle system for infrastructure maintenance and inspection
JP5806568B2 (ja) * 2011-09-26 2015-11-10 川崎重工業株式会社 水中移動型検査装置及び水中検査設備
NO336753B1 (no) * 2013-12-17 2015-10-26 Deepocean As Anordning for måling av katodisk potensiale på en belagt metallflate
GB2524338B (en) 2014-08-05 2016-02-10 Mahir Moss Mustafa Underwater inspection and monitoring apparatus
CN205368502U (zh) * 2015-12-21 2016-07-06 陕西施普石油科技有限公司 一种极化探头
US10989529B2 (en) * 2016-09-15 2021-04-27 Saudi Arabian Oil Company Magnetically coupled integrated ultrasonic testing and cathodic protection measurement probe
US10234375B2 (en) * 2016-09-15 2019-03-19 Saudi Arabian Oil Company Integrated ultrasonic testing and cathodic protection measurement probe
KR20190047706A (ko) * 2016-09-20 2019-05-08 사우디 아라비안 오일 컴퍼니 수중 차량 및 검사 방법

Also Published As

Publication number Publication date
US10551296B2 (en) 2020-02-04
SG10202006346TA (en) 2020-07-29
KR20190046773A (ko) 2019-05-07
EP3513142A1 (en) 2019-07-24
US20180073975A1 (en) 2018-03-15
US10234375B2 (en) 2019-03-19
SA519400946B1 (ar) 2021-12-14
WO2018052488A1 (en) 2018-03-22
CN109564090A (zh) 2019-04-02
JP2019531477A (ja) 2019-10-31
US20180372615A1 (en) 2018-12-27
CN109564090B (zh) 2021-10-15

Similar Documents

Publication Publication Date Title
SG11201901009WA (en) Magnetically coupled integrated ultrasonic testing and cathodic protection measurement probe
SG11201909853WA (en) Two-stage corrosion under insulation detection methodology and modular vehicle with dual locomotion sensory systems
SG11201909387TA (en) Acoustic calibration array for tanks and vessels
SG11201903682WA (en) Nondestructive inspection method for coatings and ceramic matrix composites
SG11201809913PA (en) Methods for detecting target nucleic acids in a sample
SG11201906159XA (en) Socket side thermal system
SG11201901780XA (en) Underwater pipeline inspection crawler
SG11201900511VA (en) Electromagnetic sensing and detection of ingestible event markers
SG11201808524QA (en) Devices, systems and methods for inhibiting invasion and metastases of cancer
SG11201901866TA (en) Collection probe and methods for the use thereof
SG11201811095UA (en) Multi-level storage in ferroelectric memory
SG11201908847TA (en) Apparatuses, systems and methods for imaging flow cytometry
SG11201907696QA (en) An aerosol-generating system and a cartridge for an aerosol generating system having a two-part liquid storage compartment
SG11201908332QA (en) Isolation tent
SG11201804162WA (en) Compositions comprising bacterial strains
SG11201906413XA (en) Exposure apparatus
SG11201903378XA (en) Selective etch rate monitor
SG11201903012RA (en) Anti-c1s antibodies and methods of use thereof
SG11201407898WA (en) Electrode testing apparatus
SG11201807721RA (en) Systems and methods for constructing and testing composite photonic structures
SG11201805906WA (en) Diagnostic and prognostic methods for cardiovascular diseases and events
SG11201900611QA (en) Electrical connector
SG11201906573XA (en) Pressure sensitive stylus
SG11201910195WA (en) Methods for trapping and barcoding discrete biological units in hydrogel
SG11201907500VA (en) Seismic acquisition geometry evaluation using full-waveform inversion