Dorfman; Bertrand
Patent Applications and Registrations
Patent applications and USPTO patent grants for Dorfman; Bertrand.The latest application filed is for "wayfinding system".
- Dorfman; Bertrand - New York NY
- Dorfman; Bertrand - Mt. Vernon NY
| Patent | Date |
|---|---|
| Wayfinding system Grant 8,340,903 - Dorfman December 25, 2 | 2012-12-25 |
| Wayfinding System App 20100268455 - Dorfman; Bertrand | 2010-10-21 |
| Personnel tracking system Grant 7,512,406 - Dorfman March 31, 2 | 2009-03-31 |
| Communication within buildings Grant 7,426,231 - Dorfman September 16, 2 | 2008-09-16 |
| Personnel Tracking System App 20080125159 - DORFMAN; BERTRAND | 2008-05-29 |
| Wireless communication system Grant 7,313,411 - Dorfman December 25, 2 | 2007-12-25 |
| Wireless telephone communication with reduced electromagnetic energy input on the user Grant 7,117,024 - Dorfman October 3, 2 | 2006-10-03 |
| Wireless communication system App 20050227647 - Dorfman, Bertrand | 2005-10-13 |
| Communication in high rise buildings Grant 6,463,090 - Dorfman October 8, 2 | 2002-10-08 |
| Multi-station data capture system Grant 5,623,258 - Dorfman April 22, 1 | 1997-04-22 |
| Carrier current communications system Grant 4,239,940 - Dorfman December 16, 1 | 1980-12-16 |
| Carrier current communications system Grant 4,139,735 - Dorfman , et al. February 13, 1 | 1979-02-13 |
| Multiple Address Direct Coupled Communication And Control Current Carrier System Grant 3,818,481 - Dorfman , et al. June 18, 1 | 1974-06-18 |
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