Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5245873 | Capacitance-type material level indicator and method of operation | Charles F. Hood | 1993-09-21 |
| D312219 | Liquid level detector | Ryder Pratt | 1990-11-20 |
| 4800755 | Capacitance-type material level indicator | Charles F. Hood | 1989-01-31 |
| 4555941 | Capacitance-type material level indicator | Charles F. Hood | 1985-12-03 |
| 4523463 | Electronic air filtering apparatus | James M. Fowler, Jr., Edward J. Rylicki, Edwin E. Mason | 1985-06-18 |
| 4507131 | Electronic air filtering apparatus | James M. Fowler, Jr., Edward J. Rylicki, Edwin E. Mason | 1985-03-26 |
| 4499767 | Capacitance-type material level indicator | Charles F. Hood, Robin B. Runck | 1985-02-19 |
| 4499766 | Capacitance-type material level indicator | Charles F. Hood | 1985-02-19 |
| 4467140 | Microprocessor-based cordless telephone system | Warren L. Williamson | 1984-08-21 |
| 4461036 | Processor controlled scanning radio receiver | Warren L. Williamson, Cecil Ernest Mathis | 1984-07-17 |
| 4455679 | Scanning radio receiver and frequency synthesizer therefor | Warren L. Williamson | 1984-06-19 |
| 4410934 | DC Power supply for an air filter | James M. Fowler, Jr., Edward J. Rylicki, Edwin E. Mason | 1983-10-18 |
| 4398304 | Scanning radio receiver including detector circuit for AM and FM reception | Wayne Holst | 1983-08-09 |
| D258987 | Medical electrical equipment case | Gregory P. Henry | 1981-04-21 |