DF

David M. Friend

IBM: 27 patents #3,831 of 70,183Top 6%
Overall (All Time): #146,066 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 25 most recent of 27 patents

Patent #TitleCo-InventorsDate
10804905 Using a burn-in operational amplifier for a phased locked loop regulator James D. Strom, Grant P. Kesselring 2020-10-13
10326450 Implementing cascade level shifter for analog voltage Andrew D. Davies, Grant P. Kesselring, James D. Strom 2019-06-18
10250267 Differential phase-frequency detector Grant P. Kesselring, James D. Strom, Alan P. Wagstaff 2019-04-02
10116260 VCO selection and amplitude management using center tap inductor Andrew D. Davies, Christopher W. Steffen, James D. Strom 2018-10-30
10088519 Electromigration monitor Grant P. Kesselring, Eric John Lukes, James D. Strom 2018-10-02
9929722 Wire capacitor for transmitting AC signals Grant P. Kesselring, Christopher W. Steffen, James D. Strom 2018-03-27
9923565 Differential phase-frequency detector Grant P. Kesselring, James D. Strom, Alan P. Wagstaff 2018-03-20
9882552 Low power amplifier Grant P. Kesselring, Michael A. Sperling, James D. Strom 2018-01-30
9871527 Phase locked loop with sense amplifier circuitry Grant P. Kesselring, Michael A. Sperling, James D. Strom 2018-01-16
9571109 Voltage controlled oscillator runaway prevention James D. Strom, Alan P. Wagstaff 2017-02-14
9467092 Phased locked loop with multiple voltage controlled oscillators Daniel M. Dreps, Grant P. Kesselring, James D. Strom 2016-10-11
9455730 Voltage controlled oscillator runaway prevention James D. Strom, Alan P. Wagstaff 2016-09-27
9391623 Voltage controlled oscillator runaway prevention James D. Strom, Alan P. Wagstaff 2016-07-12
9197225 Control voltage mirror circuit Kennedy K. Cheruiyot, Joel T. Ficke, Grant P. Kesselring, James D. Strom 2015-11-24
9059660 Variable frequency oscillator with specialized inverter stages Andrew D. Davies, Joel T. Ficke, Grant P. Kesselring, James D. Strom 2015-06-16
8994117 Moat construction to reduce noise coupling to a quiet supply Joel T. Ficke, James D. Strom, Erik Unterborn 2015-03-31
8917126 Charge pump operating voltage range control using dynamic biasing Joel T. Ficke, Grant P. Kesselring, James D. Strom 2014-12-23
8751982 Implementing dual speed level shifter with automatic mode control Joel T. Ficke, Grant P. Kesselring, James D. Strom, Jianguo Yao 2014-06-10
8686782 Structure for a frequency adaptive level shifter circuit Joel T. Ficke, Grant P. Kesselring, James D. Strom, Jianguo Yao 2014-04-01
8513957 Implementing integral dynamic voltage sensing and trigger Kennedy K. Cheruiyot, Joel T. Ficke, Grant P. Kesselring, James D. Strom 2013-08-20
8373486 Structure for a frequency adaptive level shifter circuit Joel T. Ficke, Grant P. Kesselring, James D. Strom, Jianguo Yao 2013-02-12
8324933 Implementing dual speed level shifter with automatic mode control Joel T. Ficke, Grant P. Kesselring, James D. Strom, Jianguo Yao 2012-12-04
6990510 Wide adder with critical path of three gates David Arnold Luick, Nghia V. Phan 2006-01-24
6909159 Method and apparatus to make a semiconductor chip susceptible to radiation failure Nghia Van Phan, Michael J. Rohn 2005-06-21
6668358 Dual threshold gate array or standard cell power saving library circuits Nghia V. Phan, Byron D. Scott, Daniel Stasiak, Bradley C. White 2003-12-23