GAY; Geoffrey Norman Walter
Patent Applications and Registrations
Patent applications and USPTO patent grants for GAY; Geoffrey Norman Walter.The latest application filed is for "electrostatic air filter".
- GAY; Geoffrey Norman Walter - Skelmersdale GB
- GAY; Geoffrey Norman Walter - Fairfield IA
- Gay; Geoffrey Norman Walter - Lancashire GB
| Patent | Date |
|---|---|
| Electrostatic Air Filter App 20220219177 - GAY; Geoffrey Norman Walter ; et al. | 2022-07-14 |
| Air cleaning device and apparatus Grant 10,286,405 - Griffiths , et al. | 2019-05-14 |
| Air Cleaning Device And Apparatus App 20170113229 - Griffiths; George ; et al. | 2017-04-27 |
| Handwriting Recognition Server App 20140089865 - GAY; Geoffrey Norman Walter ; et al. | 2014-03-27 |
| Method And System For Providing Animated Font For Character And Command Input To A Computer App 20140085311 - GAY; Geoffrey Norman Walter ; et al. | 2014-03-27 |
| Air Cleaning Filter App 20130067877 - Griffiths; George ; et al. | 2013-03-21 |
| System For Enhancing Air Filter Efficiency With External Electrical Dust Charging Device App 20120152114 - Griffiths; George ; et al. | 2012-06-21 |
| Device for air cleaning Grant 7,655,076 - Griffiths , et al. February 2, 2 | 2010-02-02 |
| Volatile Substance Filter App 20090031899 - Gay; Geoffrey Norman Walter ; et al. | 2009-02-05 |
| Device For Air Cleaning App 20080034973 - Griffiths; George ; et al. | 2008-02-14 |
| Air cleaning device Grant 7,014,688 - Griffiths , et al. March 21, 2 | 2006-03-21 |
| Air cleaning device App 20040226448 - Griffiths, George ; et al. | 2004-11-18 |
| Air cleaning device Grant 6,749,669 - Griffiths , et al. June 15, 2 | 2004-06-15 |
| Means for inputting characters or commands into a computer Grant 6,647,145 - Gay November 11, 2 | 2003-11-11 |
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