Douglas E. Lien — 2 Patents at Commercial Intertech Limited

Douglas E. Lien — 2 Patents

CLCommercial Intertech Limited: 1 patents #3 of 11Top 30%

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

Blaine, MN: #284 of 570 inventorsTop 50%

Minnesota: #24,068 of 52,454 inventorsTop 50%

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

Douglas E. Lien has been granted 2 US patents while listed as an inventor at Commercial Intertech Limited. The first was granted in 1983 and the most recent in June 1994. Douglas E. Lien ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Douglas E. Lien in Blaine, MN, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5320443	Connecting pin	Roger W. D. Boeckers	1994-06-14	$1,776,000
D268512	Hydraulic locking valve	—	1983-04-05

Douglas E. Lien — 2 Patents

Issued Patents All Time

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