Craig Louis Althen

📍 Morrison, CO: #40 of 167 inventorsTop 25%

🗺 Colorado: #10,703 of 40,980 inventorsTop 30%

Overall (All Time): #1,142,543 of 4,157,543Top 30%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
11326672	Continuously variable, non-friction, drive chain	—	2022-05-10
8136503	Piston valve internal combustion engine	—	2012-03-20
5536190	Swim fin with self-adjusting hydrofoil blades	—	1996-07-16
5490433	Semi-continuous transmission	—	1996-02-13