Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D362310 | Glass block | Ralph J. Harrison, Donald E. Hock | 1995-09-12 |
| D329913 | Translucent block | Donald E. Hock | 1992-09-29 |
| 5067295 | 45 degree block | Charles A. Francik, Donald E. Hock | 1991-11-26 |
| D318737 | Translucent end cap or the like | Robert L. Wehman, Richard Y. Greene, Donald L. Moses, Edward F. Fosnaught, Ralph J. Harrison | 1991-07-30 |
| D318129 | Translucent end block or the like | Richard Y. Greene, Robert L. Wehman | 1991-07-09 |
| 4852321 | Translucent end block | Edward F. Fosnaught, Robert L. Wehman | 1989-08-01 |
| 4719735 | Translucent end cap | Robert L. Wehman | 1988-01-19 |