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Patent applications and USPTO patent grants for Swinehart; Robert M..The latest application filed is for "air filtration system using point ionization sources".
Patent | Date |
---|---|
Air filtration system using point ionization sources Grant 7,141,098 - Zhang , et al. November 28, 2 | 2006-11-28 |
Air filtration system using point ionization sources App 20050160907 - Zhang, Zhiqun ;   et al. | 2005-07-28 |
Air filtration system using point ionization sources Grant 6,758,884 - Zhang , et al. July 6, 2 | 2004-07-06 |
Air cleaner Grant D492,019 - Zhang , et al. June 22, 2 | 2004-06-22 |
Air cleaner Grant D491,655 - Zhang , et al. June 15, 2 | 2004-06-15 |
Air filtration system using point ionization sources App 20040025695 - Zhang, Zhiqun ;   et al. | 2004-02-12 |
Air cleaner Grant D484,228 - Zhang , et al. December 23, 2 | 2003-12-23 |
Visual Differentiation Of Adsorbent-loaded Media App 20030029320 - Janisch, Jason D. ;   et al. | 2003-02-13 |
Electrically conductive adhesive tape Grant 5,087,494 - Calhoun , et al. February 11, 1 | 1992-02-11 |
Optical fibers having piezoelectric coatings Grant 4,726,651 - Wei , et al. February 23, 1 | 1988-02-23 |
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