Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12224687 | Method for selecting a frequency converter for a refrigerant compressor unit | Tobias Hieble, Julian Pfaffl, Juergen Nill, Ferdinand Breithuth | 2025-02-11 |
| 11736053 | Method for selecting a frequency converter for a refrigerant compressor unit | Tobias Hieble, Julian Pfaffl, Juergen Nill, Ferdinand Breithuth | 2023-08-22 |
| 11221167 | Initialising system for a refrigerant compressor unit and method for initialising a refrigerant compressor unit | Tobias Hieble | 2022-01-11 |
| 10804834 | Method for selecting a frequency converter for a refrigerant compressor unit | Tobias Hieble, Julian Pfaffl, Juergen Nill, Ferdinand Breithuth | 2020-10-13 |
| 4760602 | Variable preemphasis/deemphasis network | Todd J. Christopher | 1988-07-26 |
| 4747140 | Low distortion filters for separating frequency or phase modulated signals from composite signals | — | 1988-05-24 |
| 4704726 | Filter arrangement for an audio companding system | — | 1987-11-03 |
| 4547737 | Demodulator of sampled data FM signals from sets of four successive samples | — | 1985-10-15 |
| 4364119 | Video disc player with RFI reduction circuit including a signal product generator | — | 1982-12-14 |
| 4312013 | Non-linear aperture correction circuit | Frank B. Lang, Michael D. Ross | 1982-01-19 |
| 4272786 | Video disc playback apparatus with non-linear aperture correction | — | 1981-06-09 |
| 4198641 | Rotating field polarization antenna system | — | 1980-04-15 |