Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875818 | Screw having a sealing washer | — | 1989-10-24 |
| 4840083 | Device for dampening rotary motion | Robert A. Hagan | 1989-06-20 |
| 4833938 | Rotary motion dampener | Robert A. Hagan | 1989-05-30 |
| 4764069 | Anchor for masonry veneer walls | Robert A. Hagan | 1988-08-16 |
| 4749321 | Sealing fastener | Rudolph E. Knohl | 1988-06-07 |
| 4731034 | Electrical terminal assembly and method of making the same | Robert A. Hagan | 1988-03-15 |
| 4726164 | Fastener assembly for a roof membrane | Robert A. Hagan | 1988-02-23 |
| 4630984 | Assembly for fastening a layer of compressible material to a rigid member | John Spibey | 1986-12-23 |
| 4621963 | Fastener for roof assemblies and the like | — | 1986-11-11 |
| 4231281 | Adjustable spacer-cam assembly | — | 1980-11-04 |
| 4187658 | Panel clamp | — | 1980-02-12 |