Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DA

Dirk Armbrust — 2 Patents

U.S. Philips: 2 patents #2,558 of 8,851Top 30%
Hamburg, DE: #1,962 of 5,803 inventorsTop 35%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Dirk Armbrust has been granted 2 US patents while listed as an inventor at U.S. Philips. The first was granted in 1995 and the most recent in September 1997. Dirk Armbrust ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Dirk Armbrust in Hamburg, DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5673228 Integrated circuit having an EEPROM, semiconductor wafer provided with such integrated circuits, and method of testing such a semiconductor wafer Volker Timm, Tom Holtz 1997-09-30
5436971 Method of and circuit arrangement for checking a smart card Holger Brechtel, Volker Timm 1995-07-25