Powell; John R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Powell; John R..The latest application filed is for "systems and methods for collection and sampling of chemical species".
- Powell; John R. - Arlington MA
- Powell; John R. - Milton Keynes GB3
- Powell; John R. - Brookline MA
- Powell; John R. - Cumberland ME
- Powell; John R. - Bellbrook OH
- Powell; John R. - Tulsa OK
| Patent | Date |
|---|---|
| Systems and methods for collection and sampling of chemical species Grant 10,024,767 - Martin , et al. July 17, 2 | 2018-07-17 |
| Systems And Methods For Collection And Sampling Of Chemical Species App 20160195456 - Martin; John F. ; et al. | 2016-07-07 |
| Machine-readable optical disc with reading-inhibit agent Grant RE42,011 - Rollhaus , et al. December 28, 2 | 2010-12-28 |
| Machine-readable optical disc with reading-inhibit agent Grant 6,343,063 - Rollhaus , et al. January 29, 2 | 2002-01-29 |
| Machine-readable optical disc with reading-inhibit agent App 20010046204 - Rollhaus, Philip E. ; et al. | 2001-11-29 |
| Machine-readable optical disc with reading-inhibit agent Grant 6,011,772 - Rollhaus , et al. January 4, 2 | 2000-01-04 |
| Apparatus for delivering a rapidly setting composition Grant 5,320,424 - Annett , et al. June 14, 1 | 1994-06-14 |
| Ethoxylated sugar and sugar alcohol esters useful as fat substitutes Grant 5,077,073 - Ennis , et al. December 31, 1 | 1991-12-31 |
| Calibration process for bimetallic circuit breakers Grant 4,860,435 - Powell August 29, 1 | 1989-08-29 |
| Drive and storage drum for an antenna cable Grant 4,181,268 - Carolus , et al. January 1, 1 | 1980-01-01 |
| Closure for heat exchanger Grant 3,948,315 - Powell April 6, 1 | 1976-04-06 |
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