Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11529658 | Fluid pump having self-cleaning air inlet structure | Donald Lee Schultz, Matthew Thomas McKeown | 2022-12-20 |
| 11448238 | Pneumatic landfill pump cycle counter | Steven R. Wells, William C. Allen, Matthew Thomas McKeown, Mark T. Weinberger, David Fischer +1 more | 2022-09-20 |
| 11408274 | Fluid level monitoring system and method incorporating pressure sensor system having inflatable/collapsible bag | William C. Allen | 2022-08-09 |
| 11261883 | Self-cleaning pneumatic fluid pump having poppet valve with propeller-like cleaning structure | Donald Lee Schultz, Bradley PEAKE | 2022-03-01 |