Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D352990 | Combined funnel for a used oil filter and container for gathering residual oil | Duane Sparks, David C. Brenner | 1994-11-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D352990 | Combined funnel for a used oil filter and container for gathering residual oil | Duane Sparks, David C. Brenner | 1994-11-29 |