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USPTO Patent Rankings Data through Dec 31, 2025
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Robert B. Welstand — 29 Patents

PSPsemi: 15 patents #34 of 166Top 25%
PSPeregrine Semiconductor: 6 patents #25 of 112Top 25%
ACApplied Micro Circuits: 5 patents #52 of 311Top 20%
San Diego, CA: #1,362 of 23,606 inventorsTop 6%
California: #18,137 of 386,348 inventorsTop 5%
Overall (All Time): #127,851 of 4,157,543Top 4%
29 Patents All Time
Robert B. Welstand has been granted 29 US patents while listed as an inventor at Psemi. The first was granted in 2002 and the most recent in April 2024. Robert B. Welstand ranks #127,851 of 4,157,543 US inventors in our database (top 3.1%). Patent records list Robert B. Welstand in San Diego, CA, US.

Issued Patents All Time

Showing 1–25 of 29 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11967948 Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink Christopher N. Brindle, Michael A. Stuber, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +1 more 2024-04-23
11901459 Method and apparatus improving gate oxide reliability by controlling accumulated charge Michael A. Stuber, Christopher N. Brindle, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +3 more 2024-02-13
11362652 Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink Christopher N. Brindle, Michael A. Stuber, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +1 more 2022-06-14
11280674 Differential trans-impedance amplifier receiver using counter-offset circuitry Chen Sun, Jeb M. Binkley 2022-03-22
RE48965 Method and apparatus improving gate oxide reliability by controlling accumulated charge Michael A. Stuber, Christopher N. Brindle, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +3 more 2022-03-08
RE48944 Method and apparatus for use in improving linearity of MOSFETS using an accumulated charge sink Christopher N. Brindle, Michael A. Stuber, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +1 more 2022-02-22
11201245 Method and apparatus improving gate oxide reliability by controlling accumulated charge Michael A. Stuber, Christopher N. Brindle, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +3 more 2021-12-14
10895764 Dielectric electro-optic phase shifter Rajat Sharma, Chen Sun 2021-01-19
10818796 Method and apparatus improving gate oxide reliability by controlling accumulated charge Michael A. Stuber, Christopher N. Brindle, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +3 more 2020-10-27
10816832 Optical phase shifter using fine lithography defined volumetric junctions Chen Sun, Rajat Sharma 2020-10-27
10797690 Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink Christopher N. Brindle, Michael A. Stuber, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +1 more 2020-10-06
10797172 Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink-harmonic wrinkle reduction Christopher N. Brindle, Jie Deng, Alper Genc, Chieh-Kai Yang, Michael A. Stuber +4 more 2020-10-06
10797691 Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink Christopher N. Brindle, Michael A. Stuber, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +1 more 2020-10-06
10790814 Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink Christopher N. Brindle, Michael A. Stuber, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +1 more 2020-09-29
10790815 Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink Christopher N. Brindle, Michael A. Stuber, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +1 more 2020-09-29
10784855 Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink Christopher N. Brindle, Michael A. Stuber, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +1 more 2020-09-22
10680600 Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink Christopher N. Brindle, Michael A. Stuber, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +1 more 2020-06-09
10622990 Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink Christopher N. Brindle, Michael A. Stuber, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +1 more 2020-04-14
9608619 Method and apparatus improving gate oxide reliability by controlling accumulated charge Michael A. Stuber, Christopher N. Brindle, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +3 more 2017-03-28
9130564 Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink Christopher N. Brindle, Michael A. Stuber, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +1 more 2015-09-08
8405147 Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink Christopher N. Brindle, Michael A. Stuber, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +1 more 2013-03-26 $3,632,000
8129787 Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink Christopher N. Brindle, Michael A. Stuber, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +1 more 2012-03-06
7910993 Method and apparatus for use in improving linearity of MOSFET's using an accumulated charge sink Christopher N. Brindle, Michael A. Stuber, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +1 more 2011-03-22
7890891 Method and apparatus improving gate oxide reliability by controlling accumulated charge Michael A. Stuber, Christopher N. Brindle, Dylan J. Kelly, Clint L. Kemerling, George Imthurn +3 more 2011-02-15
6770554 On-chip interconnect circuits with use of large-sized copper fill in CMP process 2004-08-03 $6,369,000