Chen; Chao-Ken
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chen; Chao-Ken.The latest application filed is for "adjustment device for chairs".
- Chen; Chao-Ken - Changhua County TW
- Chen; Chao-Ken - Changhua Conuty N/A TW
- Chen; Chao-Ken - Chung-Hua Hsien TW
- Chen; Chao-Ken - Taiwan CN
- Chen; Chao-Ken - Chang-Hua County TW
- Chen; Chao-Ken - Taipei Hsien TW
- Chen; Chao-Ken - Chung Hua Hsein TW
- Chen, Chao Ken - Taipei TW
- Chen; Chao Ken - Chung Hua TW
| Patent | Date |
|---|---|
| Exhibiting rack Grant 8,641,007 - Chen February 4, 2 | 2014-02-04 |
| Rotary elbow with double shaft Grant 8,496,295 - Chen July 30, 2 | 2013-07-30 |
| Adjustable Chair App 20120274113 - Chen; Chao-Ken | 2012-11-01 |
| Adjustment Device for Chairs App 20120274114 - Chen; Chao-Ken | 2012-11-01 |
| Adjustable armrest support of chair Grant 8,251,453 - Chen August 28, 2 | 2012-08-28 |
| Adjustable Armrest Support of Chair App 20120098318 - Chen; Chao-Ken | 2012-04-26 |
| Exhibiting Rack App 20120056067 - Chen; Chao-Ken | 2012-03-08 |
| Positionable Ball Bearing App 20110182534 - Chen; Chao-Ken | 2011-07-28 |
| Rotary Elbow With Double Shaft App 20110181090 - Chen; Chao-Ken | 2011-07-28 |
| Telescopic adjustable positioning device Grant 7,980,519 - Chen July 19, 2 | 2011-07-19 |
| Unified Positioning Control Mechanism For Two Telescoping Rods App 20110088497 - Chen; Chao-Ken | 2011-04-21 |
| Portable wall-partition Grant 7,735,537 - Hardt, II , et al. June 15, 2 | 2010-06-15 |
| Partition System App 20100051211 - Chen; Chao-Ken | 2010-03-04 |
| Telescopic Device App 20090087251 - Chen; Chao-Ken | 2009-04-02 |
| Portable wall-partition App 20090000750 - Hardt, II; John C. ; et al. | 2009-01-01 |
| Telescopic Adjustable Positioning Device App 20080156962 - CHEN; Chao-Ken | 2008-07-03 |
| Table for hiding display App 20080042527 - Chen; Chao-Ken | 2008-02-21 |
| Folding table leg App 20080035822 - Chen; Chao-Ken | 2008-02-14 |
| Desk with two desk plates App 20070216268 - Chen; Chao-Ken | 2007-09-20 |
| Desk and chair interchangeable device Grant 7,198,326 - Chen April 3, 2 | 2007-04-03 |
| Desk And Chair Interchangeable Device App 20070046076 - Chen; Chao Ken | 2007-03-01 |
| Auxiliary table plate device with elevation adjusting device Grant 7,140,306 - Chen November 28, 2 | 2006-11-28 |
| Elevation adjusting device of auxiliary table plate App 20050263046 - Chen, Chao Ken | 2005-12-01 |
| Table with two adjustable table plates App 20050150437 - Chen, Chao Ken | 2005-07-14 |
| Elevational adjusting device using air pressure rod to lift object App 20040065239 - Chen, Chao Ken | 2004-04-08 |
| Elevational adjusting device using air pressure rod to lift object App 20040065238 - Chen, Chao Ken | 2004-04-08 |
| Chair Grant D479,054 - Chen September 2, 2 | 2003-09-02 |
| Chair Grant D478,734 - Chen August 26, 2 | 2003-08-26 |
| Armrest of chair with cushion App 20030030317 - Chen, Chao Ken | 2003-02-13 |
| Telescopic positioning mechanism for chair backrest Grant 6,299,253 - Chen October 9, 2 | 2001-10-09 |
| Extendible chair arm Grant 6,213,556 - Chen April 10, 2 | 2001-04-10 |
| Computer desk with pneumatic elevation control means Grant 6,092,474 - Chen July 25, 2 | 2000-07-25 |
| Adjustable armrest of an office chair Grant 5,975,640 - Chen November 2, 1 | 1999-11-02 |
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