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USPTO Patent Rankings Data through Dec 31, 2025
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Gary Matzen — 5 Patents

ETErth Technologies: 3 patents #2 of 5Top 40%
Google: 2 patents #10,599 of 22,993Top 50%
Longmont, CO: #590 of 2,039 inventorsTop 30%
Colorado: #9,021 of 40,980 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Gary Matzen has been granted 5 US patents while listed as an inventor at Erth Technologies. The first was granted in 2005 and the most recent in October 2013. Gary Matzen ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Gary Matzen in Longmont, CO, US.

Patents per Year

Patents granted per year, 2005 to 2013Bar chart with a peak of 2 patents in 2013.peak 22005: 1 patents20052007: 1 patents20072009: 1 patents20092013: 2 patents2013

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8544827 Nested nozzle mixer Ernest Peter Tovani 2013-10-01
8409439 Pressurized digester vessel Ernest Peter Tovani 2013-04-02
7531148 Oxidation reactor Paul J. Cornay, Ernest Peter Tovani 2009-05-12
7189196 Method of separating materials with a concentric tubular centrifuge Paul J. Cornay, Ernest Peter Tovani 2007-03-13
6966874 Concentric tubular centrifuge Paul J. Cornay, Ernest Peter Tovani 2005-11-22

Frequent Collaborators

Ernest Peter Tovani5 shared
Paul J. Cornay3 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