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David E. Purcel — 5 Patents

CRClark Reliance: 5 patents #2 of 20Top 10%
Elyria, OH: #63 of 293 inventorsTop 25%
Ohio: #15,931 of 73,341 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
David E. Purcel has been granted 5 US patents while listed as an inventor at Clark Reliance. The first was granted in 1993 and the most recent in April 1998. David E. Purcel ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list David E. Purcel in Elyria, OH, US.

Patents per Year

Patents granted per year, 1993 to 1998Bar chart with a peak of 2 patents in 1993.peak 21993: 2 patents19931994: 2 patents19941998: 1 patents1998

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5743137 Magnetic float assembly David E. Brown 1998-04-28
5343826 Fluid indicator assemblies for sight flow apparatus David E. Brown 1994-09-06
5297429 Sanitary sight indicator David E. Brown 1994-03-29
5249464 Sight flow apparatus with cartridge David E. Brown 1993-10-05
5243929 Tubular sanitary sight indicator David E. Brown 1993-09-14

Frequent Collaborators

David E. Brown5 shared

Nearby-Ranked Inventors

Joseph L. Mann5
Terry Richard Linn5
Ikuo DEGUCHI5
Swapnil Kumar5
Zachary W. Gyugyi5
Xiaoxue CHEN5
Mohankumar Krishnan VALIYAMBATH5
Baoquan Tan5
Jack Long5