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 2023 Bar chart with a peak of 2 patents in 2020. peak 2 1996: 1 patents 1996 2000: 1 patents 2000 2013: 1 patents 2013 2015: 1 patents 2015 2017: 1 patents 2017 2020: 2 patents 2020 2023: 1 patents 2023
Issued Patents All Time
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Showing 1–8 of 8 patents
Patent # Title Co-Inventors Date
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