Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5857715 | Pipeline branch arrangement | David A. Gray, Gary E. Harrison | 1999-01-12 |
| 5354347 | Vacuum cleaner utilizing water to capture dirt and debris | Jack G. Clark, Jr. | 1994-10-11 |
| 5336410 | Three chamber vessel for hydrocyclone separator | Kevin O'Brien, Pete Thompson | 1994-08-09 |
| D348132 | Cart | Jack G. Clark, Jr. | 1994-06-21 |
| 5249823 | Size variable cart | Jack G. Clark, Jr. | 1993-10-05 |
| 5194150 | Three chamber vessel for hydrocyclone separator | Kevin O'Brien, Pete Thompson | 1993-03-16 |