Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11955899 | Apparatus and methods for sensing resonant circuit signals to enhance control in a resonant converter | Robert J. Mayell, Hartley Fred Horwitz, Roger Colbeck | 2024-04-09 |
| 11522464 | Apparatus and methods for sensing resonant circuit signals to enhance control in a resonant converter | Robert J. Mayell, Hartley Fred Horwitz, Roger Colbeck | 2022-12-06 |
| 10763756 | Apparatus and methods for sensing resonant circuit signals to enhance control in a resonant converter | Robert J. Mayell, Hartley Fred Horwitz, Roger Colbeck | 2020-09-01 |
| 10498300 | Voltage-to-current transconductance operational amplifier with adaptive biasing | — | 2019-12-03 |
| 9118343 | Delta-sigma modulator with high input impedance | — | 2015-08-25 |
| 8970302 | Operational amplifier with selective input | — | 2015-03-03 |
| 8847805 | Delta-sigma modulator with high input impedance | — | 2014-09-30 |
| 7952341 | Multi-stable electronic circuit state control | — | 2011-05-31 |
| 4840171 | Oxygen supply unit having an oxygen generator | Holmer Rohling, Siegfried Preininger | 1989-06-20 |
| 4836197 | Folded protective hood having an oxygen mask | Holmer Rohling, Wolfgang Marqardt | 1989-06-06 |