Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4487228 | Weather-resistant and self-draining thread protector | James L. Peterson, William D. Grimes | 1984-12-11 |
DW
David T. Waldo
Shell Offshore: 1 patents #21 of 54Top 40%
Overall (All Time): #4,045,533 of 4,157,543Top 100%
1
Patents All Time