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Dick D. Irwin — 2 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%

Byron, MI: #9 of 27 inventorsTop 35%

Michigan: #35,377 of 86,293 inventorsTop 45%

Overall (All Time): #1,709,992 of 4,157,543Top 45%

2 Patents All Time

Dick D. Irwin has been granted 2 US patents while listed as an inventor at Unknown. The first was granted in 1990 and the most recent in August 1995. Dick D. Irwin ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Dick D. Irwin in Byron, MI, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5444516	Photoreceptor drum axle improvement	Steven B. Michlin	1995-08-22
4901388	Water bed corner clothes holder	—	1990-02-20

Dick D. Irwin — 2 Patents

Issued Patents All Time

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