Stephen A. Schafer — 5 Patents at Unknown

Stephen A. Schafer — 5 Patents

UNUnknown: 2 patents #12,644 of 83,584Top 20%

RDRb Distribution: 1 patents #60 of 86Top 70%

Dickinson, ND: #16 of 78 inventorsTop 25%

North Dakota: #369 of 2,395 inventorsTop 20%

Overall (All Time): #907,971 of 4,157,543Top 25%

Stephen A. Schafer has been granted 5 US patents while listed as an inventor at Unknown. The first was granted in 1984 and the most recent in April 2020. Stephen A. Schafer ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Stephen A. Schafer in Dickinson, ND, US.

Patents per Year

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #	Title	Co-Inventors	Date
D880436	Heat sink for a control module	Evan Soda	2020-04-07
4830430	Split-back chair, particularly office chair	—	1989-05-16
4548194	Fuel stoker and furnace	Tony L. Schafer, Gregory L. Schafer, H. Darwin Swett	1985-10-22
4454860	Fuel stoker and furnace	Tony L. Schafer, Gregory L. Schafer, H. Darwin Swett	1984-06-19
4430948	Fuel stoker and furnace	Tony L. Schafer, Gregory L. Schafer, H. Darwin Swett	1984-02-14

Stephen A. Schafer — 5 Patents

Patents per Year

Issued Patents All Time

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