Chalk; David Jonathan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chalk; David Jonathan.The latest application filed is for "method and system for forming and dispensing a compressed gas".
- Chalk; David Jonathan - Slatington PA
| Patent | Date |
|---|---|
| Method and System for Forming and Dispensing a Compressed Gas App 20220128195 - Cacciapalle; Michael ; et al. | 2022-04-28 |
| Seal assembly for reciprocating compressor Grant 10,883,483 - Chalk January 5, 2 | 2021-01-05 |
| Annular sealing assembly Grant 10,876,634 - Chalk , et al. December 29, 2 | 2020-12-29 |
| Annular Sealing Assembly App 20200332900 - Chalk; David Jonathan ; et al. | 2020-10-22 |
| Seal Assembly for Reciprocating Compressor App 20200102946 - Chalk; David Jonathan | 2020-04-02 |
| Compressor assemblies and methods to minimize venting of a process gas during startup operations Grant 9,494,281 - Chalk , et al. November 15, 2 | 2016-11-15 |
| Wear-compensating sealing ring assembly Grant 8,807,571 - Chalk , et al. August 19, 2 | 2014-08-19 |
| Wear-Compensating Sealing Ring Assembly App 20140090554 - Chalk; David Jonathan ; et al. | 2014-04-03 |
| Compressor Assemblies and Methods to Minimize Venting of a Process Gas During Startup Operations App 20130125568 - Chalk; David Jonathan ; et al. | 2013-05-23 |
| Zero-clearance ultra-high-pressure gas compressor Grant 7,488,159 - Bhatt , et al. February 10, 2 | 2009-02-10 |
| Multi-speed compressor/pump apparatus Grant 7,410,348 - Chalk , et al. August 12, 2 | 2008-08-12 |
| Multi-speed compressor/pump apparatus App 20070028628 - Chalk; David Jonathan ; et al. | 2007-02-08 |
| High impact discharge valve Grant 7,168,446 - Chalk , et al. January 30, 2 | 2007-01-30 |
| High impact discharge valve App 20060260693 - Chalk; David Jonathan ; et al. | 2006-11-23 |
| Zero-clearance ultra-high-pressure gas compressor App 20050284155 - Bhatt, Bharat Lajjaram ; et al. | 2005-12-29 |
| Double-acting, two-stage pump Grant 6,530,761 - Chalk , et al. March 11, 2 | 2003-03-11 |
| Pumping System And Method For Pumping Fluids App 20020144509 - Chalk, David Jonathan ; et al. | 2002-10-10 |
| Directional, low-leakage seal assembly App 20020145259 - Chalk, David Jonathan | 2002-10-10 |
| Superconducting magnet split cryostat cryogen ride-through reserve Grant 6,011,456 - Eckels , et al. January 4, 2 | 2000-01-04 |
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