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David E. Wasmer — 5 Patents

NSNigrelli Systems: 3 patents #2 of 14Top 15%
Newton, WI: #2 of 5 inventorsTop 40%
Wisconsin: #9,126 of 40,088 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
David E. Wasmer has been granted 5 US patents while listed as an inventor at Nigrelli Systems. The first was granted in 1991 and the most recent in June 2010. David E. Wasmer ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list David E. Wasmer in Newton, WI, US.

Patents per Year

Patents granted per year, 1991 to 2010Bar chart with a peak of 2 patents in 1991.peak 21991: 2 patents19912001: 1 patents20012004: 1 patents20042010: 1 patents2010

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7726658 Driven seal assembly for rotary drive shaft of motor Michael E. Grunwald 2010-06-01
6805299 Fountain aerator with flow straightener Brian J. Hanke 2004-10-19
6179228 Water fountain spray modifier Dennis L. Ramaker 2001-01-30
5011372 Aeration apparatus for pond Nicholas B. Nigrelli 1991-04-30
4981622 Aeration apparatus and method Nicholas B. Nigrelli 1991-01-01

Frequent Collaborators

Nicholas B. Nigrelli2 shared
Brian J. Hanke1 shared
Michael E. Grunwald1 shared
Dennis L. Ramaker1 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