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ME

Mark Ekern — 6 Patents

Flandreau, SD: #1 of 5 inventorsTop 20%
South Dakota: #269 of 2,308 inventorsTop 15%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Mark Ekern has been granted 6 US patents. The first was granted in 1991 and the most recent in January 2012. Mark Ekern ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Mark Ekern in Flandreau, SD, US.

Patents per Year

Patents granted per year, 1991 to 2012Bar chart with a peak of 1 patents in 1991.peak 11991: 1 patents19911994: 1 patents19941997: 1 patents19971998: 1 patents19982005: 1 patents20052012: 1 patents2012

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
8091372 Heat pump defrost system — 2012-01-10
6837137 Sheet cutting stand — 2005-01-04
5815926 Internal pipe cutter — 1998-10-06
D382195 Pipe hanger — 1997-08-12
5325988 Insulated jacket for beverage bottle — 1994-07-05
D316440 Free weight safety rack — 1991-04-23

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