John J. Chapman

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Cardinal, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Variably transmittive, electronically-controlled eyewear
- Patent number 8,411,214
- Issue date Apr 2, 2013
- United States of America as represented by the Administrator of the National...
- John J. Chapman
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multi-channel electronically scanned cryogenic pressure sensor and...
- Patent number 6,247,369
- Issue date Jun 19, 2001
- The United States of America as represented by the Administrator of the Natio...
- John J. Chapman
- G01 - MEASURING TESTING
Information Patent Grant
Cryogenic, absolute, high pressure sensor
- Patent number 6,240,785
- Issue date Jun 5, 2001
- The United States of America as represented by the administrator of the Natio...
- John J. Chapman
- G01 - MEASURING TESTING
Information Patent Grant
Cryogenic high pressure sensor module
- Patent number 5,955,678
- Issue date Sep 21, 1999
- The United States of America as represented by the administrator of the Natio...
- John J. Chapman
- G01 - MEASURING TESTING
Information Patent Grant
Pressure transducer and system for cryogenic environments
- Patent number 5,116,331
- Issue date May 26, 1992
- The United States of America as represented by the administrator of the Natio...
- John J. Chapman
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Variably Transmittive, Electronically-Controlled Eyewear
- Publication number 20090317773
- Publication date Dec 24, 2009
- United States of America as represented by the Administrator of the NASA
- John J. Chapman
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS