Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7571589 | Apparatus for and method of producing and/or separating a string of interconnected packing cushions | Adolf Wegmann | 2009-08-11 |
| 6652197 | Interlocking segmental retaining wall | — | 2003-11-25 |
| 6464432 | Interlocking segmental retaining wall | — | 2002-10-15 |
| 6186703 | Mechanical interlocking means for retaining wall | — | 2001-02-13 |
| 5482448 | Positive displacement pump with concentrically arranged reciprocating-rotating pistons | Richard G. Atwater | 1996-01-09 |
| 4334131 | Multi-stage pressure switch | Steven R. Cooper | 1982-06-08 |