Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6093230 | Filter assembly comprising two filter elements separated by a hydrophobic foam | Robert Horick | 2000-07-25 |
| 5127587 | Kitchen composter | — | 1992-07-07 |
| 4890504 | Helical gearsets | Erwin R. Carrigan, Allyn E. Phillips | 1990-01-02 |
| 4884916 | System for mounting a power transmission member to a shaft | — | 1989-12-05 |
| 4794811 | Helical gearsets | Erwin R. Carrigan, Allyn E. Phillips | 1989-01-03 |
| 4697675 | Shaft aligned backstop for a reducer | Allyn E. Phillips, Erwin R. Carrigan, Richard A. Virgo, James E. Mickelson | 1987-10-06 |
| 4667874 | Energy saving furnace controller | Steven Edward Lombardi | 1987-05-26 |
| 4367631 | Air conditioning apparatus and methods using underground duct | Harold F. McKnight, Richard Ferguson | 1983-01-11 |