IL157111A0 - Milling cutter and insert therefor - Google Patents

Milling cutter and insert therefor

Info

Publication number
IL157111A0
IL157111A0 IL15711103A IL15711103A IL157111A0 IL 157111 A0 IL157111 A0 IL 157111A0 IL 15711103 A IL15711103 A IL 15711103A IL 15711103 A IL15711103 A IL 15711103A IL 157111 A0 IL157111 A0 IL 157111A0
Authority
IL
Israel
Prior art keywords
milling cutter
insert therefor
crests
troughs
insert
Prior art date
Application number
IL15711103A
Other languages
English (en)
Original Assignee
Iscar Ltd
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 Iscar Ltd filed Critical Iscar Ltd
Priority to IL15711103A priority Critical patent/IL157111A0/xx
Publication of IL157111A0 publication Critical patent/IL157111A0/xx
Priority to KR1020067001797A priority patent/KR100898644B1/ko
Priority to CA2530864A priority patent/CA2530864C/en
Priority to CNB2004800219615A priority patent/CN100506448C/zh
Priority to SI200430573T priority patent/SI1648644T1/sl
Priority to EP04744966A priority patent/EP1648644B1/en
Priority to PT04744966T priority patent/PT1648644E/pt
Priority to AT04744966T priority patent/ATE377472T1/de
Priority to PL04744966T priority patent/PL1648644T3/pl
Priority to AU2004259540A priority patent/AU2004259540B2/en
Priority to ZA200600160A priority patent/ZA200600160B/en
Priority to BRPI0412765A priority patent/BRPI0412765B1/pt
Priority to PCT/IL2004/000626 priority patent/WO2005009660A1/en
Priority to DK04744966T priority patent/DK1648644T3/da
Priority to DE602004009936T priority patent/DE602004009936T2/de
Priority to MXPA06001015A priority patent/MXPA06001015A/es
Priority to RU2006102045/02A priority patent/RU2359788C2/ru
Priority to NZ544462A priority patent/NZ544462A/en
Priority to JP2006521767A priority patent/JP4866726B2/ja
Priority to ES04744966T priority patent/ES2293296T3/es
Priority to US10/894,007 priority patent/US7008145B2/en
Priority to BG109417A priority patent/BG65620B1/bg
Priority to NO20060853A priority patent/NO20060853L/no

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/006Details of the milling cutter body
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/16Milling-cutters characterised by physical features other than shape
    • B23C5/20Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/22Securing arrangements for bits or teeth or cutting inserts
    • B23C5/2204Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert
    • B23C5/2208Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts 
    • B23C5/2213Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts  having a special shape
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2200/00Details of milling cutting inserts
    • B23C2200/12Side or flank surfaces
    • B23C2200/128Side or flank surfaces with one or more grooves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2200/00Details of milling cutting inserts
    • B23C2200/16Supporting or bottom surfaces
    • B23C2200/167Supporting or bottom surfaces star form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2200/00Details of milling cutting inserts
    • B23C2200/16Supporting or bottom surfaces
    • B23C2200/168Supporting or bottom surfaces with features related to indexing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2210/00Details of milling cutters
    • B23C2210/08Side or top views of the cutting edge
    • B23C2210/088Cutting edges with a wave form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2210/00Details of milling cutters
    • B23C2210/16Fixation of inserts or cutting bits in the tool
    • B23C2210/168Seats for cutting inserts, supports for replacable cutting bits
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00Cutters, for shaping
    • Y10T407/19Rotary cutting tool
    • Y10T407/1906Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1908Face or end mill
    • Y10T407/191Plural simultaneously usable separable tools in common seat or common clamp actuator for plural simultaneously usable tools
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00Cutters, for shaping
    • Y10T407/19Rotary cutting tool
    • Y10T407/1906Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1934Rotary cutting tool including holder [i.e., head] having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/1936Apertured tool
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00Cutters, for shaping
    • Y10T407/22Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2202Plural spaced seats and common holder
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00Cutters, for shaping
    • Y10T407/23Cutters, for shaping including tool having plural alternatively usable cutting edges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)
  • Shovels (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Turning (AREA)
  • Drilling Tools (AREA)
  • Magnetic Heads (AREA)
IL15711103A 2003-07-27 2003-07-27 Milling cutter and insert therefor IL157111A0 (en)

Priority Applications (23)

Application Number Priority Date Filing Date Title
IL15711103A IL157111A0 (en) 2003-07-27 2003-07-27 Milling cutter and insert therefor
ES04744966T ES2293296T3 (es) 2003-07-27 2004-07-12 Fresa.
ZA200600160A ZA200600160B (en) 2003-07-27 2004-07-12 Milling cutter and insert therefor
PCT/IL2004/000626 WO2005009660A1 (en) 2003-07-27 2004-07-12 Milling cutter and insert therefor
CNB2004800219615A CN100506448C (zh) 2003-07-27 2004-07-12 铣刀以及用于它的嵌入式刀头
SI200430573T SI1648644T1 (sl) 2003-07-27 2004-07-12 Frezalo
EP04744966A EP1648644B1 (en) 2003-07-27 2004-07-12 Milling cutter
PT04744966T PT1648644E (pt) 2003-07-27 2004-07-12 Fresa
AT04744966T ATE377472T1 (de) 2003-07-27 2004-07-12 Fräswerkzeug
PL04744966T PL1648644T3 (pl) 2003-07-27 2004-07-12 Nóż frezujący
AU2004259540A AU2004259540B2 (en) 2003-07-27 2004-07-12 Milling cutter and insert therefor
KR1020067001797A KR100898644B1 (ko) 2003-07-27 2004-07-12 밀링 커터 및 밀링 커터용 인서트
BRPI0412765A BRPI0412765B1 (pt) 2003-07-27 2004-07-12 fresa
CA2530864A CA2530864C (en) 2003-07-27 2004-07-12 Milling cutter and insert therefor
DK04744966T DK1648644T3 (da) 2003-07-27 2004-07-12 Fræser
DE602004009936T DE602004009936T2 (de) 2003-07-27 2004-07-12 Fräswerkzeug
MXPA06001015A MXPA06001015A (es) 2003-07-27 2004-07-12 Fresa e inserto para la misma.
RU2006102045/02A RU2359788C2 (ru) 2003-07-27 2004-07-12 Фреза и пластина для нее
NZ544462A NZ544462A (en) 2003-07-27 2004-07-12 Milling cutter and insert therefor
JP2006521767A JP4866726B2 (ja) 2003-07-27 2004-07-12 ミリングカッターおよびそれに対するインサート
US10/894,007 US7008145B2 (en) 2003-07-27 2004-07-20 Milling cutter and insert therefor
BG109417A BG65620B1 (bg) 2003-07-27 2006-01-24 Фрезова глава и вложка за нея
NO20060853A NO20060853L (no) 2003-07-27 2006-02-21 Freseverktoy og innsats til dette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IL15711103A IL157111A0 (en) 2003-07-27 2003-07-27 Milling cutter and insert therefor

Publications (1)

Publication Number Publication Date
IL157111A0 true IL157111A0 (en) 2004-02-08

Family

ID=32652290

Family Applications (1)

Application Number Title Priority Date Filing Date
IL15711103A IL157111A0 (en) 2003-07-27 2003-07-27 Milling cutter and insert therefor

Country Status (22)

Country Link
US (1) US7008145B2 (xx)
EP (1) EP1648644B1 (xx)
JP (1) JP4866726B2 (xx)
KR (1) KR100898644B1 (xx)
CN (1) CN100506448C (xx)
AT (1) ATE377472T1 (xx)
AU (1) AU2004259540B2 (xx)
BG (1) BG65620B1 (xx)
BR (1) BRPI0412765B1 (xx)
CA (1) CA2530864C (xx)
DE (1) DE602004009936T2 (xx)
DK (1) DK1648644T3 (xx)
ES (1) ES2293296T3 (xx)
IL (1) IL157111A0 (xx)
MX (1) MXPA06001015A (xx)
NO (1) NO20060853L (xx)
NZ (1) NZ544462A (xx)
PL (1) PL1648644T3 (xx)
PT (1) PT1648644E (xx)
RU (1) RU2359788C2 (xx)
WO (1) WO2005009660A1 (xx)
ZA (1) ZA200600160B (xx)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT7667U1 (de) * 2004-02-16 2005-07-25 Ceratizit Austria Gmbh Hochgeschwindigkeitsfräser
US20050271483A1 (en) * 2004-06-02 2005-12-08 Sandvik Ab Indexable cutting inserts and methods for producing the same
IL170837A (en) 2005-09-13 2009-11-18 Robi Nudelman Cutting insert
JP4857958B2 (ja) * 2006-01-11 2012-01-18 三菱マテリアル株式会社 丸駒インサート着脱式切削工具および丸駒インサート
SE531502C2 (sv) * 2007-06-05 2009-04-28 Sandvik Intellectual Property Verktyg för spånavskiljande bearbetning samt grundkropp och indexerbart skär härför
US7591614B2 (en) * 2007-11-20 2009-09-22 Kennametal Inc. Cutting insert with serrations
KR101063622B1 (ko) * 2008-01-22 2011-09-07 이흥열 인서트팁 및 이를 이용한 면취기
DE102008037915B3 (de) * 2008-08-14 2009-08-13 Kennametal Inc. Wendeschneidplatte
JP4597270B2 (ja) * 2008-09-29 2010-12-15 京セラ株式会社 切削インサートおよび切削工具並びにそれを用いた切削方法
WO2010035831A1 (ja) * 2008-09-29 2010-04-01 京セラ株式会社 切削インサート、切削工具、およびそれらを用いる切削方法
SE0900286A1 (sv) 2009-03-06 2010-07-27 Seco Tools Ab Skär med urtagen skärstödjande yta och skärverktyg
EP2412462B1 (en) * 2009-03-27 2015-05-13 Kyocera Corporation Cutting insert, cutting tool, and method of cutting material to be cut using the cutting tool
KR101145491B1 (ko) * 2009-05-13 2012-05-15 한국야금 주식회사 양면형 절삭 인서트 및 이를 채용한 커터바디
US8573903B2 (en) 2009-11-03 2013-11-05 Kennametal Inc. Round cutting insert with anti-rotation feature
JP2011110664A (ja) * 2009-11-27 2011-06-09 Sumitomo Electric Hardmetal Corp スローアウェイ式切削工具
CN102011363B (zh) * 2010-11-03 2012-02-01 聂联合 沥青路面铣刨机和开槽机的刀片
CN102151913A (zh) * 2011-01-10 2011-08-17 李仕清 一种复合插齿刀复合剃齿刀
US8657539B2 (en) 2011-03-28 2014-02-25 Kennametal Inc. Round cutting insert with reverse anti-rotation feature
EP2714312B1 (en) 2011-05-27 2019-11-27 Nanomech Inc. Coating layer with microstructure serrated edge
US8858130B2 (en) 2012-04-24 2014-10-14 Kennametal Inc. Indexable circular cutting insert
USD709110S1 (en) 2012-04-24 2014-07-15 Kennametal Inc. Cutting insert
CN104540623B (zh) * 2012-08-10 2017-12-22 住友电工硬质合金株式会社 车床车削工具
US9180533B2 (en) 2013-02-07 2015-11-10 Kennametal Inc. Round cutting insert with serrated topography
CN107427938B (zh) * 2015-04-06 2019-04-19 株式会社泰珂洛 切削刀片以及刀刃更换式切削工具
CZ2016215A3 (cs) * 2016-04-14 2017-06-07 Západočeská Univerzita V Plzni Fréza s rozpěrami
DE102016125921A1 (de) 2016-12-30 2018-07-05 Wirtgen Gmbh Werkzeugkombination mit einem Meißelhalter und zwei Meißeln
DE102016125917A1 (de) 2016-12-30 2018-07-05 Wirtgen Gmbh Meißelwechselhalter
JP6761604B2 (ja) * 2018-09-14 2020-09-30 株式会社タンガロイ 切削インサート及び切削工具
JP6744599B1 (ja) * 2019-03-01 2020-08-19 株式会社タンガロイ 切削インサート
US11504784B2 (en) 2020-12-09 2022-11-22 Kennametal Inc. Cutting tool with interconnected arms for increased stiffness to weight ratio
US11571759B2 (en) * 2020-12-09 2023-02-07 Kennametal Inc. Cutting tool with directed fluid flow to facilitate chip evacuation
US11806796B2 (en) 2021-03-15 2023-11-07 Kennametal Inc. Cutting insert and cutting tool comprising cutting insert
US11883894B2 (en) 2021-07-13 2024-01-30 Kennametal Inc. Composite cutting tool
US11911835B2 (en) 2022-03-23 2024-02-27 Kennametal Inc. Lightweight rotary cutting tool

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3636602A (en) * 1969-07-11 1972-01-25 Frank Owen Cutting tools
US3574911A (en) * 1969-12-17 1971-04-13 Milling Specialties Inc Cutter and inserts therefor
US3742565A (en) * 1970-07-31 1973-07-03 Oliver Machinery Co Rotary cutter
IT990237B (it) * 1972-08-15 1975-06-20 Malinchak P Perfezionamento negli inserti ta glienti per macchine per la lavora zione di metalli
US3922766A (en) * 1972-08-15 1975-12-02 Paul Malinchak Inserts for metal cutters
US3875631A (en) 1972-08-15 1975-04-08 Paul Malinchak Inserts for metal cutters
US4936719A (en) * 1976-08-24 1990-06-26 Greenleaf Corporation Cutter and indexable on edge inserts with aligned corners and staggered serrated edges
FR2431897A1 (fr) * 1978-07-25 1980-02-22 Igman Sa Plaquette rapportee pour outil de coupe rotatif
US4248553A (en) * 1978-09-29 1981-02-03 Fansteel Inc. Cutting insert configuration
GB2179281B (en) * 1985-08-21 1989-12-06 Gen Electric Cutting tool insert having cutting edges with recesses
JPS62156411A (ja) * 1985-12-27 1987-07-11 Mitsui Constr Co Ltd 浮消波堤
DE3806833A1 (de) 1988-03-03 1989-09-14 Hilti Ag Pulverkraftbetriebenes bolzensetzgeraet
JP2615931B2 (ja) * 1988-10-27 1997-06-04 三菱化学株式会社 フィルムの製造方法
DE9305518U1 (de) * 1993-04-13 1993-07-01 Werthwein, Gustav, 7143 Vaihingen Fräswerkzeug
CA2131066C (en) * 1994-08-29 2001-01-30 Denis Johnson Debarker arms and debarker tips for mounting on log barking machines
JPH08206910A (ja) * 1995-01-31 1996-08-13 Kyocera Corp 切削インサート及びそのホルダー
JPH0994705A (ja) * 1995-09-29 1997-04-08 Bitsugu Alpha Kk 切削工具
WO1997013605A1 (en) * 1995-10-12 1997-04-17 Virgil Shouse Indexed cutting tool
JPH09155622A (ja) * 1995-12-07 1997-06-17 Honda Motor Co Ltd フライスカッタ
SE510852C3 (sv) * 1996-07-10 1999-07-19 Sandvik Ab Vaendskaer
JPH11197906A (ja) * 1998-01-09 1999-07-27 Dijet Ind Co Ltd 丸型スローアウェイチップ及びスローアウェイ式切削工具
SE518855C2 (sv) * 1998-03-10 2002-11-26 Seco Tools Ab Skärverktyg och skär
US6238133B1 (en) * 1998-10-20 2001-05-29 Kennametal Pc Inc. Anti-rotation mounting mechanism for round cutting insert
IL139957A0 (en) * 2000-11-28 2002-02-10 Iscar Ltd Cutting tool
US6599061B1 (en) * 2000-08-17 2003-07-29 Kennametal Inc. Cutting insert with radially aligned chip forming grooves
US6508612B1 (en) * 2000-09-05 2003-01-21 Kennametal Inc. Milling cutter capable of using inserts of various geometrical shapes
US6540448B2 (en) * 2001-05-14 2003-04-01 Ingersoll Cutting Tool Company Cutting tool with improved insert seat arrangement for indexable cutting inserts
IL145574A0 (en) * 2001-09-24 2002-06-30 Iscar Ltd Cutting tool and cutting insert therefor

Also Published As

Publication number Publication date
JP2007500083A (ja) 2007-01-11
PL1648644T3 (pl) 2008-03-31
BRPI0412765A (pt) 2006-09-26
RU2006102045A (ru) 2006-08-10
EP1648644A1 (en) 2006-04-26
MXPA06001015A (es) 2006-04-11
US7008145B2 (en) 2006-03-07
DK1648644T3 (da) 2008-01-02
NO20060853L (no) 2006-02-21
BG109417A (en) 2006-09-29
PT1648644E (pt) 2007-12-19
BRPI0412765B1 (pt) 2018-12-26
AU2004259540A1 (en) 2005-02-03
RU2359788C2 (ru) 2009-06-27
CA2530864C (en) 2011-06-14
US20050019110A1 (en) 2005-01-27
CA2530864A1 (en) 2005-02-03
CN1829581A (zh) 2006-09-06
ZA200600160B (en) 2007-04-25
KR20060052893A (ko) 2006-05-19
WO2005009660A1 (en) 2005-02-03
ES2293296T3 (es) 2008-03-16
KR100898644B1 (ko) 2009-05-22
EP1648644B1 (en) 2007-11-07
AU2004259540B2 (en) 2009-04-23
NZ544462A (en) 2007-10-26
CN100506448C (zh) 2009-07-01
DE602004009936T2 (de) 2008-08-28
BG65620B1 (bg) 2009-03-31
JP4866726B2 (ja) 2012-02-01
ATE377472T1 (de) 2007-11-15
DE602004009936D1 (de) 2007-12-20

Similar Documents

Publication Publication Date Title
IL157111A0 (en) Milling cutter and insert therefor
EP1356885B8 (de) Scheibenfräser und Schneidplatte
TW200711767A (en) Cutting insert
EP1931488A4 (en) MILLING AND MILLING PLATE
EP1545843A4 (en) CUTTING TOOL WITH GROOVED CUTTING EDGE
ZA200606280B (en) Double-sided cutting insert and milling cutter
IL155288A0 (en) Tangential cutting insert and milling cutter
PT1476266E (pt) Ferramenta de corte de metais
EP1718439A4 (en) ROTARY CUTTING TOOL WITH IRREGULAR APPLICATION APPARATUS
EP1598132A4 (en) EDGE REPLACEMENT TIP AND THIS USING CUTTING TOOL
DE60139869D1 (de) Rundlauf-schneidwerkzeug
USD532024S1 (en) Milling tool
AU2002239534A1 (en) Constant dimension insert cutting tool with regrindable profiled inserts
CA107363S (en) Indexable cutting insert
SE0104158L (sv) Verktyg
USD502473S1 (en) Cutting insert structure
IL165854A0 (en) Cutting insert having two opposite cutting heads
IL153938A0 (en) Cutting insert and milling cutter
WO2004105988A3 (en) Cutting tool insert and cutter body
USD496950S1 (en) Cutting tool insert
USD496949S1 (en) Cutting tool insert
AU2003293620A1 (en) Tool provided with adjustable cutting edge
USD474787S1 (en) Cutting tool insert
ATE390976T1 (de) Schneideinsatz mit haupt- und schlichtschneide
AU2003260199A1 (en) Cutting element and machining tool equipped therewith

Legal Events

Date Code Title Description
FF Patent granted
KB Patent renewed
KB Patent renewed
KB Patent renewed
KB Patent renewed
KB Patent renewed