David Hards

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Hollis, NH, US

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Patents Grantslast 30 patents

Information Patent Grant
High cleaning efficiency room air cleaner with slim profile
- Patent number 8,083,840
- Issue date Dec 27, 2011
- Headwaters R&D Inc
- Matthew T. R. Bailey
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
High Cleaning Efficiency Room Air Cleaner With Slim Profile
- Publication number 20120060694
- Publication date Mar 15, 2012
- Matthew T. R. Bailey
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
High Cleaning Efficiency Room Air Cleaner with Slim Profile
- Publication number 20100089243
- Publication date Apr 15, 2010
- Matthew T. R. Bailey
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL