Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9011692 | Method for removal of volatile phosphates from hydrocarbons | — | 2015-04-21 |
| 8636905 | Method for removal of volatile phosphates from hydrocarbons | — | 2014-01-28 |
| 5905623 | Telephone and data overvoltage protection apparatus including a longitudinal transformer | — | 1999-05-18 |
| 5874788 | External backup power supply | — | 1999-02-23 |
| 5770984 | Filter formed with a one piece U-shape ferrite core | Michael Raleigh | 1998-06-23 |
| 5671110 | Ground skew protection method and apparatus | Laurence H. Fish | 1997-09-23 |
| 4940947 | Line noise signal measurement system using analog signal compression with digital linearity correction | Andrew McCartney | 1990-07-10 |
| 4941063 | Telephone lines overvoltage protection apparatus | Melvin A. Lace | 1990-07-10 |
| 4758920 | Telephone and data overvoltage protection apparatus | — | 1988-07-19 |
| 4725739 | AC branch power distribution filter | Robert T. Thomas | 1988-02-16 |
| 4623834 | Dual programmable response time constants for electronic tap switching line regulators | August G. Klingbiel | 1986-11-18 |
| 4455586 | High voltage filtering and protection circuit | — | 1984-06-19 |
| 4352055 | AC Variable voltage source utilizing pulse width modulation | — | 1982-09-28 |