The following operators can be used to better focus your queries.
( ) , AND, OR, NOT, W/#
? single char wildcard, not at start
* multi char wildcard, not at start
(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*
This guide provides a more detailed description of the syntax that is supported along with examples.
This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.
Concept Search - What can I type?
For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.
Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.
Disclosed is a material which allows pressure equalization and vapor migration in an environmentally sealed electronic equipment enclosure while maintaining radio frequency interference (RFI) shielding.
Disclosed is a material which allows pressure equalization and vapor
migration in an environmentally sealed electronic equipment enclosure while
maintaining radio frequency interference (RFI) shielding.
The material consists of a membrane 1 of Gore-tex (Trademark of W.L. Gore
& Associates, Inc.) expanded polytetrafluoroethylene (PTFE) bonded to a
substrate of electrically conductive fabric 2. The expanded PTFE repels liquid
water yet allows air and water vapor to pass. The conductive fabric substrate
provides mechanical support for the PTFE membrane and electrical continuity for
In use, the material is installed over openings in the enclosure 3 and held in
place by any means that precludes leakage and allows electrical continuity along
the material periphery.