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Ralph Evans Killen — 2 Patents

Chevron: 2 patents #1,782 of 4,788Top 40%

San Francisco, CA: #14,470 of 26,999 inventorsTop 55%

California: #187,151 of 386,348 inventorsTop 50%

Overall (All Time): #1,709,992 of 4,157,543Top 45%

2 Patents All Time

Ralph Evans Killen has been granted 2 US patents while listed as an inventor at Chevron. All of these patents were granted in 2015. Ralph Evans Killen ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Ralph Evans Killen in San Francisco, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
9199213	Fixed-bed catalyst support for a hydroprocessing reactor	Craig Boyak	2015-12-01	$99,768,000
9079141	Vortex-type mixing device for a down-flow hydroprocessing reactor	Craig Boyak, Abdenour Kemoun, Krishniah Parimi, Steven Xuqi Song	2015-07-14	$655,967,000

Ralph Evans Killen — 2 Patents

Issued Patents All Time

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