Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848407 | Pipeline rehabilitation method utilizing articulated gasketed-joint pipe | Eric E. Kemp | 1989-07-18 |
HJ
Harold Robert Smith, Jr.
Overall (1989): #107,662 of 140,708Top 80%
1
Patents 1989