Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6553733 | Glass block with internal capsule | John T. Verch | 2003-04-29 |
| D362310 | Glass block | Harry A. Fleming, Jr., Ralph J. Harrison | 1995-09-12 |
| D329913 | Translucent block | Harry A. Fleming, Jr. | 1992-09-29 |
| 5067295 | 45 degree block | Charles A. Francik, Harry A. Fleming, Jr. | 1991-11-26 |