RC

Roland J. Christensen

FI Freedom Innovations: 13 patents #1 of 17Top 6%
UN Unknown: 8 patents #1,262 of 83,584Top 2%
FC Fibertech Co.: 2 patents #4 of 37Top 15%
📍 Centerfield, UT: #1 of 5 inventorsTop 20%
🗺 Utah: #281 of 19,430 inventorsTop 2%
Overall (All Time): #75,043 of 4,157,543Top 2%
41
Patents All Time

Issued Patents All Time

Showing 26–41 of 41 patents

Patent #TitleCo-InventorsDate
6702858 Liner for prosthetic socket with variable viscosity fluid 2004-03-09
6663673 Prosthetic foot with energy transfer medium including variable viscosity fluid 2003-12-16
6241776 Prosthetic foot with reinforcing member 2001-06-05
6197068 Prosthetic foot simulating toe rotation 2001-03-06
6120547 Enhanced prosthetic foot structure with ankle reinforcement 2000-09-19
5944760 Prosthetic foot with reinforcing member 1999-08-31
5915937 Primarily independent composite/metallic gun barrel 1999-06-29
5804756 Composite/metallic gun barrel having matched coefficients of thermal expansion 1998-09-08
5692334 Primarily independent composite/metallic gun barrel 1997-12-02
5657568 Composite/metallic gun barrel having a differing, restrictive coefficient of thermal expansion 1997-08-19
5435869 Method for manufacturing a composite crank arm 1995-07-25
5368358 Composite spring support for bicycle seats 1994-11-29
5360394 Rigid joint support brace sizing means and method 1994-11-01
5286250 Knee joint hinge for brace Andrew H. Meyers 1994-02-15
4934917 Apparatus for forming hollow structures from powdered thermoplastic materials Larry J. Ashton, Randy L. Crane 1990-06-19
4776996 Process and apparatus for forming hollow structures from powdered thermoplastic materials Larry J. Ashton, Randy L. Crane 1988-10-11