Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David G. Ozinga — 8 Patents

RGRefocus Group: 6 patents #12 of 15Top 80%
MCMcgaw: 2 patents #11 of 28Top 40%
Flower Mound, TX: #112 of 646 inventorsTop 20%
Texas: #19,067 of 125,132 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
David G. Ozinga has been granted 8 US patents while listed as an inventor at Refocus Group. The first was granted in 1996 and the most recent in February 2023. David G. Ozinga ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list David G. Ozinga in Flower Mound, TX, US.

Patents per Year

Patents granted per year, 1996 to 2023Bar chart with a peak of 2 patents in 2020.peak 21996: 1 patents19962000: 1 patents20002013: 1 patents20132015: 1 patents20152017: 1 patents20172020: 2 patents20202023: 1 patents2023

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
11571333 Apparatus and method for securing ocular tissue and providing surgical tool positioning points 2023-02-07
10806631 Surgical tool for forming incisions in ocular tissue with tip providing visibility and related apparatus and method David J. Schanzlin 2020-10-20
10744031 Apparatus and method for securing ocular tissue Jack C. Griffis, III 2020-08-18
9592152 Apparatus and method for securing ocular tissue Jack C. Griffis, III 2017-03-14
8945166 Apparatus and method for forming incisions in ocular tissue Karl H. Beitzel 2015-02-03
8597318 Apparatus and method for forming incisions in ocular tissue Karl H. Beitzel 2013-12-03
6110410 Method of making a disposable cassette with negative head height fluid supply Dana J. Owens, Aaron Raines, Ed G. Rasmussen, David J. Harrison, Carl R. Anderson 2000-08-29
5554013 Disposable cassette with negative head height fluid supply Dana J. Owens, Aaron Raines, Ed G. Rasmussen, David J. Harrison, Carl R. Anderson 1996-09-10