CH

Charles Hansen

TR Tri-Tech: 4 patents #3 of 18Top 20%
Overall (All Time): #1,063,159 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4884333 Method of making a stepper motor Roy Cooper 1989-12-05
4841189 Stepper motor and method of making the same Roy Cooper 1989-06-20
4714853 Low profile electric motor Albert Palmero 1987-12-22
4655099 Noiseless stepper motor 1987-04-07
4501981 Return-to-zero stepper motor 1985-02-26