BOOMGAARD; Dirk J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for BOOMGAARD; Dirk J..The latest application filed is for "digital rod position indication system and method".
- BOOMGAARD; Dirk J. - Monroeville PA
- Boomgaard; Dirk J. - Monroeville Borough PA
- Boomgaard; Dirk J. - Monroeville Boro PA
| Patent | Date |
|---|---|
| Digital Rod Position Indication System And Method App 20220223304 - MEYERS; Timothy S. ; et al. | 2022-07-14 |
| Demodulator for powerline carrier communications Grant 5,504,454 - Daggett , et al. April 2, 1 | 1996-04-02 |
| Transmission of data via power lines Grant 4,962,496 - Vercellotti , et al. October 9, 1 | 1990-10-09 |
| Power line communication system Grant 4,903,006 - Boomgaard February 20, 1 | 1990-02-20 |
| Power line carrier communication system Grant 4,885,563 - Johnson , et al. December 5, 1 | 1989-12-05 |
| Elevator door control system Grant 4,776,433 - Lagree , et al. October 11, 1 | 1988-10-11 |
| Method and apparatus for remotely monitoring a process carried out in a containment structure Grant 4,668,465 - Boomgaard , et al. May 26, 1 | 1987-05-26 |
| Bidirectional bus coupler presenting peak impedance at carrier frequency Grant 4,646,319 - Engel , et al. February 24, 1 | 1987-02-24 |
| Digital rod position detector system Grant 4,629,983 - Boomgaard , et al. December 16, 1 | 1986-12-16 |
| Automatic tensioning control for winding stator coils Grant 4,381,852 - Ferree , et al. May 3, 1 | 1983-05-03 |
| Elevator system Grant 4,278,150 - Wehrli, III , et al. July 14, 1 | 1981-07-14 |
| Position indication system Grant 3,893,090 - Neuner , et al. July 1, 1 | 1975-07-01 |
| Position Indication System Grant 3,846,771 - Young , et al. November 5, 1 | 1974-11-05 |
| Signal Seeking Fm Stereo System Grant 3,553,379 - Boomgaard January 5, 1 | 1971-01-05 |
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