John Rafter — 3 Patents at Chevron

John Rafter has been granted 3 US patents while listed as an inventor at Chevron. The first was granted in 1986 and the most recent in May 2025. John Rafter ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John Rafter in Madison, WI, US.

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Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12313624	Ex vivo systems and methods for determining the effect of a drug or other agent on a tissue	Jonathan Daniel Oliner, Neil Anthony, Sean Caenepeel, Laura Catherine Funk Hrycyniak, Tomasz Zal	2025-05-27
11366101	Ex vivo systems and methods for determining the effect of a drug or other agent on a tissue	Jonathan Daniel Oliner, Neil Anthony, Sean Caenepeel, Laura Catherine Funk Hrycyniak, Tomasz Zal	2022-06-21
4628749	Method and apparatus for obtaining liquid samples	—	1986-12-16	$15,338,000

John Rafter — 3 Patents

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