Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Unknown › Jeffrey T. Bertka
JB

Jeffrey T. Bertka — 4 Patents

UNUnknown: 4 patents #4,220 of 83,584Top 6%
Cuyahoga Falls, OH: #125 of 472 inventorsTop 30%
Ohio: #19,019 of 73,341 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Jeffrey T. Bertka has been granted 4 US patents while listed as an inventor at Unknown. The first was granted in 1996 and the most recent in May 1998. Jeffrey T. Bertka ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Jeffrey T. Bertka in Cuyahoga Falls, OH, US.

Patents per Year

Patents granted per year, 1996 to 1998Bar chart with a peak of 2 patents in 1998.peak 21996: 1 patents19961997: 1 patents19971998: 2 patents1998

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5749816 Floor mountable and adjustable rotating resistance exerciser Thomas E. Froelich, Sr. 1998-05-12
5709630 Adjustable rotating resistance exerciser disposed on a flexible member Thomas E. Froelich, Sr. 1998-01-20
5634871 Adjustable rotating resistance exerciser Thomas E. Froelich, Sr. 1997-06-03
5487709 Adjustable rotating resistance exerciser Thomas E. Froelich, Sr. 1996-01-30

Frequent Collaborators

Thomas E. Froelich, Sr.4 shared

Nearby-Ranked Inventors

Jagadeesh Kandasamy4
Ross CABOT4
George Ueda4
Franz A. Gruswitz4
Tommy Glimberg4
Vinayakaraddy Gulabal4
Sandra Bittorf4
Aviel FOGEL4
Eric Matthew Walton4