Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4207660 | Method of making low cost insertable type port liner | Vemulapalli D. N. Rao, Benjamin T. Howes | 1980-06-17 |
| 4206598 | Low cost cast-in place port liner | Vemulapalli D. N. Rao | 1980-06-10 |
| 4195478 | Low cost insertable type port liner | Vemulapalli D. N. Rao, Benjamin T. Howes | 1980-04-01 |