Issued Patents All Time
Showing 25 most recent of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12308847 | Dual loop charge pump for enhanced reliability and power consumption | John Borkenhagen, Ann Wu, Rashmi R. Bindu | 2025-05-20 |
| 12218120 | Device mismatch mitigation for medium range and beyond distances | Dureseti Chidambarrao, Matthew S. Angyal, Noah Zamdmer, Varadarajan Vidya, Grant P. Kesselring +1 more | 2025-02-04 |
| 11775002 | Redundant clock switch | Matthew James Paschal, Daniel M. Dreps, Glen A. Wiedemeier, Bruce George Rudolph | 2023-10-03 |
| 11750180 | High frequency AC coupled self-biased divider | Grant P. Kesselring, Andrew D. Davies, Ann Wu | 2023-09-05 |
| 11558057 | Phase locked loop pulse truncation | John Borkenhagen, Grant P. Kesselring, Christopher W. Steffen | 2023-01-17 |
| 11527953 | Higher yielding improved matching reference circuit especially applicable for high speed mixed signal applications and phase locked loops and charge pumps | John Borkenhagen, Ann Wu, Erik Unterborn, Grant P. Kesselring | 2022-12-13 |
| 11496094 | Voltage-controlled oscillator with centertap bias | Herschel A. Ainspan, Andrew D. Davies, John Borkenhagen | 2022-11-08 |
| 11303285 | Multi-mode design and operation for transistor mismatch immunity | Erik Unterborn, Michael A. Sperling, Dureseti Chidambarrao, Grant P. Kesselring | 2022-04-12 |
| 10969422 | Guard ring monitor | Grant P. Kesselring, Ann Wu | 2021-04-06 |
| 10897225 | Oscillator failure detection circuit | Matthew James Paschal, Bruce George Rudolph, Daniel M. Dreps | 2021-01-19 |
| 10804905 | Using a burn-in operational amplifier for a phased locked loop regulator | Grant P. Kesselring, David M. Friend | 2020-10-13 |
| 10778146 | Integrated circuit voltage-controlled oscillator with late-stage fabrication tuning | Grant P. Kesselring, Scott Trcka, Ann Wu | 2020-09-15 |
| 10644709 | Efficient differential charge pump with sense and common mode control | Grant P. Kesselring, Ann Wu, Scott Trcka | 2020-05-05 |
| 10361707 | Efficient differential charge pump with sense and common mode control | Grant P. Kesselring, Ann Wu, Scott Trcka | 2019-07-23 |
| 10326450 | Implementing cascade level shifter for analog voltage | Andrew D. Davies, David M. Friend, Grant P. Kesselring | 2019-06-18 |
| 10250267 | Differential phase-frequency detector | David M. Friend, Grant P. Kesselring, Alan P. Wagstaff | 2019-04-02 |
| 10116260 | VCO selection and amplitude management using center tap inductor | Andrew D. Davies, David M. Friend, Christopher W. Steffen | 2018-10-30 |
| 10088519 | Electromigration monitor | David M. Friend, Grant P. Kesselring, Eric John Lukes | 2018-10-02 |
| 9929722 | Wire capacitor for transmitting AC signals | David M. Friend, Grant P. Kesselring, Christopher W. Steffen | 2018-03-27 |
| 9923565 | Differential phase-frequency detector | David M. Friend, Grant P. Kesselring, Alan P. Wagstaff | 2018-03-20 |
| 9882552 | Low power amplifier | David M. Friend, Grant P. Kesselring, Michael A. Sperling | 2018-01-30 |
| 9871527 | Phase locked loop with sense amplifier circuitry | David M. Friend, Grant P. Kesselring, Michael A. Sperling | 2018-01-16 |
| 9571109 | Voltage controlled oscillator runaway prevention | David M. Friend, Alan P. Wagstaff | 2017-02-14 |
| 9571069 | Implementing clock receiver with low jitter and enhanced duty cycle | Andrew D. Davies, Grant P. Kesselring, Christopher W. Steffen | 2017-02-14 |
| 9467092 | Phased locked loop with multiple voltage controlled oscillators | Daniel M. Dreps, David M. Friend, Grant P. Kesselring | 2016-10-11 |