Patents
Include patents
Include non-patent literature
Search within
Search within the title, abstract, claims, or full patent document: You can restrict your search to a specific field using field names.
Use TI= to search in the title, AB= for the abstract, CL= for the claims, or TAC= for all three. For example, TI=(safety belt).
Search by Cooperative Patent Classifications (CPCs): These are commonly used to represent ideas in place of keywords, and can also be entered in a search term box. If you're searching forseat belts, you could also search for B60R22/00 to retrieve documents that mention safety belts or body harnesses. CPC=B60R22 will match documents with exactly this CPC, CPC=B60R22/low matches documents with this CPC or a child classification of this CPC.
Learn More
Title
Abstract
Claims
Full Document
Find patents
Keywords and boolean syntax (USPTO or EPO format): seat belt searches these two words, or their plurals and close synonyms. "seat belt" searches this exact phrase, in order. -seat -belt searches for documents not containing either word.
For searches using boolean logic, the default operator is AND with left associativity. Note: this means safety OR seat belt is searched as (safety OR seat) AND belt. Each word automatically includes plurals and close synonyms. Adjacent words that are implicitly ANDed together, such as (safety belt), are treated as a phrase when generating synonyms.
Learn More
Search by
Chemistry searches match terms (trade names, IUPAC names, etc. extracted from the entire document, and processed from .MOL files.)
Substructure (use SSS=) and similarity (use ~) searches are limited to one per search at the top-level AND condition. Exact searches can be used multiple times throughout the search query.
Searching by SMILES or InChi key requires no special syntax. To search by SMARTS, use SMARTS=.
To search for multiple molecules, select "Batch" in the "Type" menu. Enter multiple molecules separated by whitespace or by comma.
Learn More
Display advanced search options
Method of the compensation of an amplification circuit non-linear distortions and apparatus for making same
Abstract
translated from
Classifications
machine-classified
cpc-machine-classified
fterm-machine-classified
fterm-family-classified
The classifications are assigned by a computer and are not a legal conclusion.
Google has not performed a legal analysis and makes no representation as to the accuracy of the classifications listed.
Google has not performed a legal analysis and makes no representation as to the accuracy of the classifications listed.
The CPC classifications are assigned by a computer and are not a legal conclusion.
Google has not performed a legal analysis and makes no representation as to the accuracy of the classifications listed.
Google has not performed a legal analysis and makes no representation as to the accuracy of the classifications listed.
The F-term classifications are assigned based on a patent family member containing
these classification codes.
The F-term classifications are assigned by a computer and are not a legal conclusion.
Google has not performed a legal analysis and makes no representation as to the accuracy of the classifications listed.
Google has not performed a legal analysis and makes no representation as to the accuracy of the classifications listed.
View 3 more classifications
Hide more classifications
Landscapes
Show more
Show less
CS210491A3
Czechoslovakia
Patent application
- Other languages
English - Inventor
Hans U Boksberger Narindra N Dr Puri
Worldwide applications
1990
EP
1991
CS
CA
ZA
YU
PL
HU
BR
US
JP
KR
CN
Application number: EP90113326A
Filing date: 1990-07-12
Legal status: Withdrawn
Application number: CS912104A
Filing date: 1991-07-08
Legal status:
Application number: CA002046457A
Filing date: 1991-07-08
Legal status: Abandoned
Application number: ZA915313A
Filing date: 1991-07-09
Legal status:
Application number: YU120591A
Filing date: 1991-07-09
Legal status:
Application number: PL29099191A
Filing date: 1991-07-09
Legal status:
Application number: HU912340A
Filing date: 1991-07-11
Legal status:
Application number: BR919102948A
Filing date: 1991-07-11
Legal status: Application Discontinuation
Application number: US07/728,733
Filing date: 1991-07-11
Legal status: Expired - Lifetime
Application number: JP3171377A
Filing date: 1991-07-11
Legal status: Pending
Application number: KR1019910011930A
Filing date: 1991-07-12
Legal status: Withdrawn
Application number: CN91104821A
Filing date: 1991-07-12
Legal status: Expired - Fee Related
Application CS912104A events
A timeline of key events for this patent application, including priority claims,
publications, legal status, reassignments, and litigation.
Google has not performed a legal analysis and makes no representation as to the accuracy or completeness of the events listed.
Google has not performed a legal analysis and makes no representation as to the accuracy or completeness of the events listed.
1991-07-08
1992-02-19
Description
translated from
Claims ()
Hide Dependent
translated from
Claims ()
Hide Dependent
translated from
Patent Citations (7)
Publication number
Priority date
Publication date
Assignee
Title
Family To Family Citations
* Cited by examiner, † Cited by third party
Cited By (42)
Publication number
Priority date
Publication date
Assignee
Title
Family To Family Citations
* Cited by examiner, † Cited by third party, ‡ Family to family citation
Similar Documents
Publication
Publication Date
Title
Priority And Related Applications
Applications Claiming Priority (1)
Application
Filing date
Title
Concepts
machine-extracted
The concepts are extracted by a computer and may be incomplete or incorrect.
Effects
Methods
Name
Image
Sections
Count
Query match
Data provided by IFI CLAIMS Patent Services
Learn more about data coverage, search syntax and other features.
Send feedback about technical issues or feature requests for Google Patents.