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John Redfern — 11 Patents

ETEavor Technologies: 7 patents #3 of 14Top 25%
UFUS Air Force: 3 patents #2,305 of 16,312Top 15%
Los Angeles, CA: #1,139 of 12,377 inventorsTop 10%
California: #56,011 of 386,348 inventorsTop 15%
Overall (All Time): #435,149 of 4,157,543Top 15%
11 Patents All Time
John Redfern has been granted 11 US patents while listed as an inventor at Eavor Technologies. The first was granted in 1980 and the most recent in November 2025. John Redfern ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list John Redfern in Los Angeles, CA, US.

Patents per Year

Patents granted per year, 1980 to 2025Bar chart with a peak of 3 patents in 2025.peak 31980: 1 patents19801982: 1 patents19821984: 1 patents19842021: 2 patents20212022: 1 patents20222023: 1 patents20232024: 1 patents20242025: 3 patents2025

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
12474089 Generating geothermal energy using multiple working fluids Matthew Toews, Bailey Schwarz, Paul Cairns, Vsevolod Zatonski 2025-11-18
12241660 Operational protocol for harvesting a thermally productive formation Matthew Toews, Bailey Schwarz, Derek Riddell, Paul Cairns, Andrew Curtis-Smith +2 more 2025-03-04
12228112 Method for on demand power production utilizing geologic thermal recovery Matthew Toews, Bailey Schwarz, Paul Cairns 2025-02-18
12163696 Method for thermal profile control and energy recovery in geothermal wells Paul Cairns, Matthew Toews 2024-12-10
11808488 Energy recovery in geothermal wells Paul Cairns, Matthew Toews 2023-11-07
11460008 Method for on demand power production utilizing geologic thermal recovery Matthew Toews, Bailey Schwarz, Paul Cairns 2022-10-04
11156386 Method for thermal profile control and energy recovery in geothermal wells Paul Cairns, Matthew Toews 2021-10-26
11125472 Fluid for use in power production environments Matthew Toews, Glenn Price, Paul Cairns, Jeff Smith 2021-09-21
4469399 Method of making an undersea, high pressure bulkhead penetrator for use with fiber optic cables Steven J. Cowen, James H. Daughtry, Christopher M. Young 1984-09-04
4330855 Apparatus for multiplexing digital signals Gary A. Dressel 1982-05-18
4194194 Piezoelectric vibration detector for sensing a nearby intruder — 1980-03-18

Frequent Collaborators

Matthew Toews8 shared
Paul Cairns8 shared
Bailey Schwarz4 shared
James H. Daughtry1 shared
Jeff Smith1 shared
Peter Andrews1 shared

Nearby-Ranked Inventors

Ya-Ching Chang11
Hermann Lubbert11
Alexander WAITE11
Mehrad Mehr11
Matthew J. Purdey11
Nishtha Madaan11
Ian C. Richards11
Chad Huffman11
Lifeng Fan11