Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5127927 | Flow filter device | Richard W. Holmes | 1992-07-07 |
| 4817644 | Apparatus and method for the safe and effective, large scale removal and disposal of hazardous materials from building components | Richard W. Holmes | 1989-04-04 |