Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7343936 | Water pipe coupling with off-centered piercing assembly for tear out disk and method of removing disk | Fred Collins, Albert A. Amparan | 2008-03-18 |
| 7089964 | Water pipe coupling with off-centered piercing assembly for tear out disk and method of removing disk | Fred Collins, Albert A. Amparan | 2006-08-15 |