RC

Roy Cooper

TR Tri-Tech: 2 patents #7 of 18Top 40%
Overall (All Time): #1,671,028 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4884333 Method of making a stepper motor Charles Hansen 1989-12-05
4841189 Stepper motor and method of making the same Charles Hansen 1989-06-20
4747188 Web-laying Barrie Sedgely 1988-05-31