Patents per Year
Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4895536 | Lead frame assembly having severable electrical circuit sections | Richard F. Granitz, William H. Rose, David T. Shaffer | 1990-01-23 | $3,695,000 |
| 4805885 | Sinuous spring | William H. Rose, David W. Rupnik, David T. Shaffer | 1989-02-21 | $5,090,000 |
| 4783906 | Method of making a customizable electrical article | Richard F. Granitz, William H. Rose, David T. Shaffer | 1988-11-15 | $4,447,000 |
| 4673837 | Motor brush assembly | Richard F. Granitz, William H. Rose, David T. Shaffer | 1987-06-16 | $18,057,000 |
| 4531030 | Electrical switch and actuating mechanism therefor | William H. Rose, David W. Rupnik, David T. Shaffer | 1985-07-23 | $10,078,000 |
| 4497983 | Electrical hook switch | Michael D. Galloway, David T. Shaffer | 1985-02-05 | $4,923,000 |
| 4417106 | Sealed electrical contact assembly and electrical switch made therefrom | Patrick R. McCarty, David T. Shaffer | 1983-11-22 | $4,592,000 |