Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4744273 | Fastener retaining attachment for wrench sockets | — | 1988-05-17 |
| 4468231 | Cation ion exchange of coal | Howard Freund, Ronald Liotta | 1984-08-28 |
| 4407206 | Partial combustion process for coal | Howard Freund | 1983-10-04 |
| 4388062 | Multi-stage process for combusting fuels containing fixed-nitrogen species | Yih H. Song, Vince J. Siminski, John P. Longwell | 1983-06-14 |
| 4343606 | Multi-stage process for combusting fuels containing fixed-nitrogen chemical species | David W. Blair, John P. Longwell, Adel F. Sarofim | 1982-08-10 |