Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7074022 | Discharge valve assembly for reciprocating compressors | Benjamin Majerus, Peter Douglas Mantell, David Monk, John Richard Walters, Jr. | 2006-07-11 |
| 6896495 | Cylinder head and valve plate assembly for reciprocating compressor | Benjamin Majerus, Peter Douglas Mantell, David Monk, John Richard Walters, Jr. | 2005-05-24 |