Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8797335 | Platform agnostic screen capture tool | — | 2014-08-05 |
| 8797338 | Platform agnostic screen capture tool | — | 2014-08-05 |
| 8769407 | Pointing help system | — | 2014-07-01 |
| 6540991 | Stabilized active materials | Darryl F. Klassen | 2003-04-01 |
| 6225262 | Encapsulated breaker slurry compositions and methods of use | Michael J. Irwin | 2001-05-01 |
| 6162766 | Encapsulated breakers, compositions and methods of use | Michael J. Irwin | 2000-12-19 |
| 6056250 | Sign stand for flexible traffic control signage | David U. Hillstrom, Yevgeniy M. Levin | 2000-05-02 |
| 5938365 | Tubular frame with round corner members | Ronald E. Grewe | 1999-08-17 |
| D392686 | Sign stand with rolling base | Robert Sarkisian, David U. Hillstrom | 1998-03-24 |
| 5442871 | Poster and sign display assembly | Robert Sarkisian, David U. Hillstrom | 1995-08-22 |
| D360078 | Wall mounted sign frame | Robert Sarkisian, David U. Hillstrom | 1995-07-11 |
| D351863 | Free standing sign stand | Robert Sarkisian, David U. Hillstrom | 1994-10-25 |
| 5340068 | Release mechanism for locking pivotable leg | Robert Sarkisian, James J. Mason | 1994-08-23 |
| 5046886 | Universal stackable manhole shield | James J. Mason | 1991-09-10 |