Cullen Craig Keyes — 9 Patents at Defiant Engineering

Cullen Craig Keyes has been granted 9 US patents while listed as an inventor at Defiant Engineering. The first was granted in 2023 and the most recent in December 2025. Cullen Craig Keyes ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Cullen Craig Keyes in Hysham, MT, US.

Patents per Year

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date
12503929	Isolation system with integrated slip and extrusion prevention mechanisms and methods of use	Ian Graham Janke, Lawrence Gene Griffin	2025-12-23
12474147	Grounding sabot and methods of use	Ian Graham Janke	2025-11-18
12460517	Interlocking perforation gun and methods of use	Ian Graham Janke, Lawrence Gene Griffin, Benjamin J. Jennings	2025-11-04
12366151	Penetrator and dispensers and methods of use	Lawrence Gene Griffin, Ian Graham Janke	2025-07-22
12332097	Axial LiDAR doppler analyzer	Lawrence Gene Griffin	2025-06-17
12110770	Single or multi-fire semi-automatic perforation system and methods of use	Stanley Jon Blois, Lawrence Gene Griffin, Ian Graham Janke	2024-10-08
12018965	Axial LiDAR doppler analyzer	Lawrence Gene Griffin	2024-06-25
12006808	Penetrator and dispensers and methods of use	Lawrence Gene Griffin, Ian Graham Janke	2024-06-11
11846164	Single or multi-fire semi-automatic perforation system and methods of use	Stanley Jon Blois, Lawrence Gene Griffin, Ian Graham Janke, Gareth Nicholas Jones	2023-12-19

Cullen Craig Keyes — 9 Patents

Patents per Year

Issued Patents All Time

Patent Widget