Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D830862 | Geological compass | David Heerschap, Lauren Heerschap | 2018-10-16 |
| 9038280 | Mirrored compass with improved sighting window | — | 2015-05-26 |
| 8695225 | Mirrored compass for improved directional reading | — | 2014-04-15 |
| D687327 | Compass with short base | — | 2013-08-06 |
| D687324 | Compass with short base and cover | — | 2013-08-06 |
| D687323 | Compass on base | — | 2013-08-06 |
| D687326 | Compass with long base | — | 2013-08-06 |
| 8322041 | Compass with improved declination adjustment | — | 2012-12-04 |
| 8296960 | Compass with improved reading precision | — | 2012-10-30 |
| 6647633 | Low profile compass with removable protective cover and magnetic bull's eye alignment system | — | 2003-11-18 |
| 6516526 | Pocket transit | — | 2003-02-11 |
| 6357128 | Low profile compass with removable protective cover and magnetic bull's eye alignment system | — | 2002-03-19 |
| 6282802 | Hand-held needleless compass | — | 2001-09-04 |
| 5079846 | Floating disk compass | — | 1992-01-14 |
| D310970 | Combined compass and thermometer | — | 1990-10-02 |
| D310787 | Combined compass and thermometer | — | 1990-09-25 |
| D308488 | Compass | — | 1990-06-12 |
| 4700490 | Compass | Melvin G. Kramer | 1987-10-20 |
| D290093 | Compass | Melvin G. Kramer | 1987-06-02 |
| 4438568 | Recreational compass | Melvin G. Kramer | 1984-03-27 |