Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6585008 | Method and apparatus for breaching and venting sealed inner containers within a drum | Mark D. Shaw, Laurence M. Bierce | 2003-07-01 |
| 6550492 | Filter vent fitting | Mark D. Shaw, Laurence M. Bierce | 2003-04-22 |
| 6530722 | Drain sealing device | Mark D. Shaw, Laurence M. Bierce | 2003-03-11 |