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USPTO Patent Rankings Data through Dec 31, 2025
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Andreas Gülzow — 5 Patents

UNUnknown: 4 patents #4,220 of 83,584Top 6%
DGDtg International Gmbh: 3 patents #1 of 11Top 10%
Springe, DE: #14 of 73 inventorsTop 20%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Andreas Gülzow has been granted 5 US patents while listed as an inventor at Unknown. The first was granted in 1990 and the most recent in April 2015. Andreas Gülzow ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Andreas Gülzow in Springe, DE.

Patents per Year

Patents granted per year, 1990 to 2015Bar chart with a peak of 2 patents in 1990.peak 21990: 2 patents19902011: 1 patents20112014: 1 patents20142015: 1 patents2015

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
9013199 Contact-connection unit for a test apparatus for testing printed circuit boards Rüdiger Dehmel 2015-04-21
8749259 Full grid cassette for a parallel tester for testing a non-componented printed circuit board, spring contact pin for such a full grid cassette and adapter for a parallel tester for testing a non-componented printed circuit board Rüdiger Dehmel 2014-06-10
7982481 Module for a parallel tester for the testing of circuit boards Rüdiger Dehmel, Michael Holzbrecher, Edward Bruchwald 2011-07-19
4899104 Adapter for a printed circuit board testing device Martin Maelzer, Rüdiger Dehmel, Hans-Hermann Higgen 1990-02-06
4896107 Test pin for an adapter for connecting test contacts on the grid of a printed circuit board testing device with test points of a test-piece on and/or off the grid Martin Maelzer, Rüdiger Dehmel, Hans-Hermann Higgen 1990-01-23