Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4288103 | Fluid fitting having gripping bass means for chucking | Erling G. Wennerstrom, Mark R. Houdek | 1981-09-08 |
| D258983 | Elbow fitting | Erling G. Wennerstrom, Mark R. Houdek, Laszlo Aliczky | 1981-04-21 |
| D258078 | Elbow fitting | Erling G. Wennerstrom, Mark R. Houdek, Laszlo Aliczky | 1981-01-27 |
| D258077 | Blank for an elbow fitting | Erling G. Wennerstrom, Mark R. Houdek, Laszlo Aliczky | 1981-01-27 |
| D258002 | Blank for an elbow fitting | Erling G. Wennerstrom, Mark R. Houdek, Laszlo Aliczky | 1981-01-20 |
| D258003 | Elbow fitting | Erling G. Wennerstrom, Mark R. Houdek, Laszlo Aliczky | 1981-01-20 |
| 4201366 | Bellows valve | Oliver L. Danko, Earl D. Shufflebarger, David Simko, Edward E. Kish | 1980-05-06 |