Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11511460 | Devices and processes for making concrete articles | — | 2022-11-29 |
| 10703013 | Devices and processes for making concrete articles | — | 2020-07-07 |
| 10493656 | Devices and processes for making concrete articles | — | 2019-12-03 |
| 7731149 | Septic tank form | — | 2010-06-08 |
| 5881760 | Modular steel tank with casting wall | — | 1999-03-16 |
| 5865346 | Self-contained fueling system and method | — | 1999-02-02 |
| 5720467 | Modular curb and sewer casting form | — | 1998-02-24 |
| D381666 | Portable reduction grinder | — | 1997-07-29 |
| 5645234 | Compact reduction grinder | — | 1997-07-08 |
| 5582310 | Above-grade storage vault | — | 1996-12-10 |
| 5454544 | Storage vault cover casting assembly | — | 1995-10-03 |
| 5381995 | Concrete hole former | — | 1995-01-17 |
| 5354127 | Segmented mixing auger | William Ackerson | 1994-10-11 |
| 5285914 | Above-grade storage vault | — | 1994-02-15 |
| 5197682 | Portable hydraulic shredder | — | 1993-03-30 |
| 5171507 | Method for casting a resilient bulkhead gasket | — | 1992-12-15 |
| 4922463 | Portable volumetric concrete mixer/silo | Jerry Lewis | 1990-05-01 |