Roy Cooper — 3 Patents at Tri-Tech

Roy Cooper has been granted 3 US patents while listed as an inventor at Tri-Tech. The first was granted in 1988 and the most recent in December 1989. Roy Cooper ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Roy Cooper in Bolton, CT, GB.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
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

Roy Cooper — 3 Patents

Issued Patents All Time

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