Perkowitz; David
Patent Applications and Registrations
Patent applications and USPTO patent grants for Perkowitz; David.The latest application filed is for "window shade".
- Perkowitz; David - Vernon Hills IL
| Patent | Date |
|---|---|
| Window Shade App 20150184455 - Perkowitz; David ; et al. | 2015-07-02 |
| Window shade Grant 9,010,399 - Perkowitz April 21, 2 | 2015-04-21 |
| Window shade and method of use thereof Grant 8,857,493 - Perkowitz October 14, 2 | 2014-10-14 |
| Window shade Grant 8,851,140 - Perkowitz October 7, 2 | 2014-10-07 |
| Window Shade App 20130292065 - Perkowitz; David | 2013-11-07 |
| Window shade Grant 8,505,607 - Perkowitz August 13, 2 | 2013-08-13 |
| Window Shade And Method Of Use Thereof App 20130160953 - Perkowitz; David | 2013-06-27 |
| Window shade and method of use thereof Grant 8,381,792 - Perkowitz February 26, 2 | 2013-02-26 |
| Window shade and method of use thereof Grant 8,365,795 - Perkowitz February 5, 2 | 2013-02-05 |
| Window Shade App 20130020037 - Perkowitz; David | 2013-01-24 |
| Window Shade App 20130020034 - Perkowitz; David | 2013-01-24 |
| Multiple window shade system and method Grant 8,261,808 - Perkowitz September 11, 2 | 2012-09-11 |
| Window Shade and Method of Use Thereof App 20110232852 - Perkowitz; David | 2011-09-29 |
| Window Shade And Method Of Use Thereof App 20110100569 - Perkowitz; David | 2011-05-05 |
| Multiple Window Shade System And Method App 20100307698 - Perkowitz; David | 2010-12-09 |
| Multiple Window Shade System And Method App 20100307697 - Perkowitz; David | 2010-12-09 |
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