Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10926586 | Tire tread having a flexible gate apparatus | Martin A. Yurjevich | 2021-02-23 |
| 8973630 | Tire including concave recesses in a circumferential tread | Keith A. Dumigan | 2015-03-10 |
| 7950426 | Tread blocks having reduced edge stiffness | — | 2011-05-31 |
| 7819153 | Tire including concave recesses in a circumferential tread | Keith A. Dumigan | 2010-10-26 |
| 7779876 | Reinforced blade for use in a vulcanization mold to form a sipe in a tire | — | 2010-08-24 |
| 7387144 | Tire having a textured marking and method of making same | — | 2008-06-17 |
| 7370888 | Apparatus and method for enhancing tire traction | — | 2008-05-13 |
| D561088 | Tire tread | Keith A. Dumigan | 2008-02-05 |
| 7299693 | Method and apparatus for monitoring tire performance including slippage | — | 2007-11-27 |
| 7299694 | Method and apparatus for monitoring tire performance | — | 2007-11-27 |
| D554052 | Tire tread | Keith A. Dumigan | 2007-10-30 |
| D534487 | Tire tread | Keith A. Dumigan | 2007-01-02 |
| 7114383 | Method and apparatus for monitoring tire performance | — | 2006-10-03 |
| D524721 | Tire tread | Keith A. Dumigan, Yasuo Himuro, John P. Rodak, David C. Spragg, Andrew J. SVENSON +1 more | 2006-07-11 |
| D508673 | Tire tread | Keith A. Dumigan, Jeffrey D. Parker | 2005-08-23 |
| D508674 | Tire tread | Keith A. Dumigan, Jeffrey D. Parker | 2005-08-23 |
| D498456 | Tire tread | John J. Regallis, Richard J. Wright, Richard W. Gillmore, Naota Yamagishi, Atsushi Miyasaka | 2004-11-16 |
| D472874 | Tire tread | John J. Regallis, Richard J. Wright, Richard W. Gillmore, Naota Yamagishi | 2003-04-08 |
| D377330 | Tire tread | Hiroki Kakegawa, James G. Guspodin | 1997-01-14 |
| 5294973 | Method and apparatus for determining body ply cord distribution | — | 1994-03-15 |
| 4483420 | Elevator door interlocking apparatus | — | 1984-11-20 |