Patents per Year
Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7100761 | Rotatable coin display | Max A. DeHerrera | 2006-09-05 | |
| 6394499 | Self-adhesive stamp construction | David P. Hanefeld, Max A. DeHerrera, Alan Green, Vance P. Mattison, Julia J. Souther | 2002-05-28 | $19,114,000 |
| 5191972 | Storage and display device for coins and the like | David P. Hanefeld, Dwight Hayes | 1993-03-09 | |
| 4364537 | Adjustable plate holder | — | 1982-12-21 | |
| D266461 | Adjustable plate holder | — | 1982-10-12 |