Friday; David K.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Friday; David K..The latest application filed is for "gas mask filter canister".

Company Profile

0.8.15

Friday; David K. - Cockeysville MD
Friday; David K. - Baltimore MD
Friday; David K. - Havre de Grace MD
Friday; David K. - Hunt Valley MD
Friday; David K. - Timonium MD

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Gas mask filter canister Grant 8,292,991 - Friday , et al. October 23, 2	2012-10-23
Gas Mask Filter Canister App 20120167889 - Friday; David K. ; et al.	2012-07-05
Filtration heat transfer system App 20100281834 - Friday; David K. ; et al.	2010-11-11
Systems And Methods Of Heating, Cooling And Humidity Control In Air Filtration Adsorbent Beds App 20090260372 - Skinner; Steven G. ; et al.	2009-10-22
Filter integrity tester Grant 7,592,178 - Ding , et al. September 22, 2	2009-09-22
Air filtration media comprising oxidizing agent-treated metal-doped silicon-based gel and zeolite materials Grant 7,559,981 - Friday , et al. July 14, 2	2009-07-14
Air filtration media comprising metal-doped silicon-based gel materials Grant 7,377,965 - Withiam , et al. May 27, 2	2008-05-27
Air filtration media comprising metal-doped silicon-base gel materials with oxidizing agents App 20080006012 - Friday; David K. ; et al.	2008-01-10
Air filtration media comprising oxidizing agent-treated metal-doped silicon-based gel and zeolite materials App 20080006153 - Friday; David K. ; et al.	2008-01-10
Gas mask filter canister Grant 7,311,764 - Friday , et al. December 25, 2	2007-12-25
Air filtration media comprising metal-doped silicon-based gel and zeolite materials App 20070221059 - Withiam; Michael C. ; et al.	2007-09-27
Air filtration media comprising metal-doped silicon-based gel and zeolite materials App 20070221062 - Withiam; Michael C. ; et al.	2007-09-27
Multi-stage respirator filter with TIM filter option Grant 7,213,595 - Capon , et al. May 8, 2	2007-05-08
Multi-stage Respirator Filter With Tim Filter Option App 20070056589 - Capon; Andrew ; et al.	2007-03-15
Air filtration media comprising metal-doped silicon-based gel materials App 20070012191 - Withiam; Michael W. ; et al.	2007-01-18
Method of producing metal-doped silicon-based gel materials App 20070009416 - Withiam; Michael C. ; et al.	2007-01-11
Air filtration media comprising metal-doped silicon-based gel materials App 20070003762 - Withiam; Michael W. ; et al.	2007-01-04
Four bed regenerable filter system Grant 7,115,152 - Friday , et al. October 3, 2	2006-10-03
Filter integrity tester App 20060188994 - Ding; Yuqing ; et al.	2006-08-24
Gas mask filter canister App 20050160911 - Friday, David K. ; et al.	2005-07-28
Four bed regenerable filter system App 20050150377 - Friday, David K. ; et al.	2005-07-14
Self-sealing filter connection and gas mask filter assembly incorporating the same Grant 6,860,267 - Capon , et al. March 1, 2	2005-03-01
Self-sealing filter connection and gas mask filter assembly incorporating the same App 20040025880 - Capon, Andrew ; et al.	2004-02-12

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.