Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE45569 | Volume control for audio signals | — | 2015-06-16 |
| RE45389 | Volume control for audio signals | — | 2015-02-24 |
| RE44929 | Volume control for audio signals | — | 2014-06-03 |
| 8596794 | Projection system and projection system with light recycling | Martin J. Richards | 2013-12-03 |
| RE44261 | Volume control for audio signals | — | 2013-06-04 |
| 8411137 | Dual projection system with inversely synchronized channel projections | John Carey, Martin J. Richards | 2013-04-02 |
| RE43132 | Volume control for audio signals | — | 2012-01-24 |
| 7251337 | Volume control in movie theaters | — | 2007-07-31 |
| 6667592 | Mapped robot system | James E. Goodnow, II, David M. Knuth, Jr., Charles W. Ward, Allen J. Bancroft | 2003-12-23 |
| 5911898 | Method and apparatus for providing multiple autoregulated temperatures | Cristian C. Filimon | 1999-06-15 |
| 5678202 | Combined antenna apparatus and method for receiving and transmitting radio frequency signals | Cristian C. Filimon, Anand Gundavajhala | 1997-10-14 |
| 5227946 | Electrical device comprising a PTC conductive polymer | Mary S. McTavish, Frank A. Doljack | 1993-07-13 |
| 5195013 | PTC conductive polymer compositions | Mary S. McTavish, Frank A. Doljack | 1993-03-16 |
| 5140297 | PTC conductive polymer compositions | Mary S. McTavish, Frank A. Doljack | 1992-08-18 |
| 4955267 | Method of making a PTC conductive polymer electrical device | Mary S. McTavish, Frank A. Doljack | 1990-09-11 |
| 4951382 | Method of making a PTC conductive polymer electrical device | Mary S. McTavish, Frank A. Doljack | 1990-08-28 |
| 4951384 | Method of making a PTC conductive polymer electrical device | Mary S. McTavish, Frank A. Doljack | 1990-08-28 |
| 4857880 | Electrical devices comprising cross-linked conductive polymers | Andrew N. Au, Marguerite E. Deep, Timothy E. Fahey | 1989-08-15 |
| 4845838 | Method of making a PTC conductive polymer electrical device | Mary S. McTavish, Frank A. Doljack | 1989-07-11 |
| 4833830 | Hatch closure assembly | Edward T. Prell | 1989-05-30 |
| 4743321 | Devices comprising PTC conductive polymers | Pravin Soni, Peter H. van Konynenburg, Mark F. Wartenberg, Randolph W. Chan | 1988-05-10 |
| 4724417 | Electrical devices comprising cross-linked conductive polymers | Andrew N. Au, Marguerite E. Deep, Timothy E. Fahey | 1988-02-09 |