Cammenga; Eric
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cammenga; Eric.The latest application filed is for "office chair".
- Cammenga; Eric - Holland MI
| Patent | Date |
|---|---|
| Contoured seating structure Grant 7,594,700 - Stumpf , et al. September 29, 2 | 2009-09-29 |
| Office chair App 20060071523 - Stumpf; William E. ; et al. | 2006-04-06 |
| Chair with a linkage assembly Grant 6,966,604 - Stumpf , et al. November 22, 2 | 2005-11-22 |
| Chair with a linkage assembly App 20040155503 - Stumpf, William E. ; et al. | 2004-08-12 |
| Seating structure having a backrest with a flexible membrane and a moveable armrest Grant 6,733,080 - Stumpf , et al. May 11, 2 | 2004-05-11 |
| Seating structure having a fabric with a weave pattern Grant 6,726,286 - Stumpf , et al. April 27, 2 | 2004-04-27 |
| Seating structure having a backrest with a bowed section Grant 6,722,741 - Stumpf , et al. April 20, 2 | 2004-04-20 |
| Support assembly for a seating structure Grant 6,702,390 - Stumpf , et al. March 9, 2 | 2004-03-09 |
| Backrest Grant 6,588,842 - Stumpf , et al. July 8, 2 | 2003-07-08 |
| Seating structure having a fabric with a weave pattern App 20030034681 - Stumpf, William E. ; et al. | 2003-02-20 |
| Seating structure having a backrest with a flexible membrane and a moveable armrest App 20030034680 - Stumpf, William E. ; et al. | 2003-02-20 |
| Support assembly for a seating structure App 20030034682 - Stumpf, William E. ; et al. | 2003-02-20 |
| Seating structure having a backrest with a flexible membrane and a moveable armrest App 20030020310 - Stumpf, William E. ; et al. | 2003-01-30 |
| Office chair Grant 6,386,634 - Stumpf , et al. May 14, 2 | 2002-05-14 |
| Backrest App 20010030453 - Stumpf, William E. ; et al. | 2001-10-18 |
| Seat App 20010028188 - Stumpf, William E. ; et al. | 2001-10-11 |
| Process for making an office chair Grant 6,125,521 - Stumpf , et al. October 3, 2 | 2000-10-03 |
| Office chair Grant 6,059,368 - Stumpf , et al. May 9, 2 | 2000-05-09 |
| Woven fabric membrane for a seating surface Grant 6,035,901 - Stumpf , et al. March 14, 2 | 2000-03-14 |
| Tilt control mechanism for a chair Grant 5,772,282 - Stumpf , et al. June 30, 1 | 1998-06-30 |
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