Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4673659 | Lightweight concrete roof tiles | Richard Hack | 1987-06-16 |
JW
John W. Wood
Siemens Energy: 20 patents #21 of 1,016Top 3%
Siemens Power Generation: 2 patents #33 of 257Top 15%
East Penn Manufacturing: 1 patents #6 of 21Top 30%
Marley Tile Ag: 1 patents #5 of 10Top 50%
Multos: 1 patents #7 of 9Top 80%
Overall (All Time): #154,841 of 4,157,543Top 4%
26
Patents All Time