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Robert C. Walker — 26 Patents

RARayvio: 16 patents #3 of 13Top 25%
LALarq: 4 patents #7 of 18Top 40%
AMAmtrol: 2 patents #12 of 37Top 35%
Hayward, CA: #50 of 1,120 inventorsTop 5%
California: #20,975 of 386,348 inventorsTop 6%
Overall (All Time): #150,017 of 4,157,543Top 4%
26 Patents All Time
Robert C. Walker has been granted 26 US patents while listed as an inventor at Rayvio. The first was granted in 1980 and the most recent in March 2021. Robert C. Walker ranks #150,017 of 4,157,543 US inventors in our database (top 3.6%). Patent records list Robert C. Walker in Hayward, CA, US.

Issued Patents All Time

Showing 1–25 of 26 patents

Patent #TitleCo-InventorsDate
10959443 Device for UV-LED liquid monitoring and treatment Yitao Liao, Doug Collins 2021-03-30
10959651 Human gas sensing glucose monitoring and ketone fluctuation detection device George Anthony McKinney, Glenn Allan Battle 2021-03-30
10669166 UV-LED liquid monitoring and treatment apparatus and method Yitao Liao, Doug Collins, Wei Zhang 2020-06-02
10570028 Device for UV-LED liquid monitoring and treatment Yitao Liao, Doug Collins 2020-02-25
10561156 Device for UV-LED liquid monitoring and treatment Yitao Liao, Doug Collins 2020-02-18
10439099 UV light emitting devices and systems and methods for production Yitao Liao, Doug Collins 2019-10-08
10363327 Luminaire with white light LEDs and UV LEDs for lighting and disinfection Yitao Liao, Douglas A. Collins, Theodore J. de Jony, Elaine Taylor 2019-07-30
10265430 Ultraviolet light source and methods Yitao Liao, Doug Collins, Sheung Yin Li 2019-04-23
10227241 UV-LED liquid monitoring and treatment apparatus and method Yitao Liao, Doug Collins, Wei Zhang 2019-03-12
10224443 Semiconductor device and a method of making a semiconductor device Douglas A. Collins, Faisal Sudradjat, Yitao Liao 2019-03-05
10214431 System and method for UV-LED liquid monitoring and disinfection Yitao Liao, Doug Collins, Theodore J. de Jony 2019-02-26
10166309 White light LEDs and UV LEDs in same luminaire for lighting and disinfection Yitao Liao, Douglas A. Collins, Theodore J. de Jony, Elaine Taylor 2019-01-01
9943618 Ultraviolet light source and methods Yitao Liao, Doug Collins, Sheung Yin Li 2018-04-17
9793433 UV light emitting devices and systems and methods for production Yitao Liao, Doug Collins 2017-10-17
9669121 Ultraviolet light source and methods Yitao Liao, Doug Collins, Sheung Yin Li 2017-06-06
9627579 Semiconductor device and a method of making a semiconductor device Douglas A. Collins, Faisal Sudradjat, Yitao Liao 2017-04-18
9566357 Ultraviolet light source and methods Yitao Liao, Doug Collins 2017-02-14
9468695 Ultraviolet light source and methods Yitao Liao 2016-10-18
9219204 Semiconductor device and a method of making a semiconductor device Douglas A. Collins, Faisal Sudradjat, Yitao Liao 2015-12-22
8884258 Ultraviolet light source and methods Yitao Liao 2014-11-11
8816300 Portable UV-LED water purification system Milan Singh Minsky 2014-08-26
8083936 Reducing waste water in reverse osmosis residential drinking water systems — 2011-12-27
4825805 Device and method for protecting water sprinklers while painting — 1989-05-02
4747366 Device for protecting water sprinklers while painting — 1988-05-31
4313400 Lined metal tank with heat shield, indirect fired water heater and method of making same Joseph A. Lane 1982-02-02

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ROBERT JACOB PET26
Van S. Chandler26
Mark S. Fredrickson26
Ming Li26