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USPTO Patent Rankings Data through Dec 31, 2025
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Albert Bischof — 2 Patents

ATAT&T: 1 patents #10,636 of 18,772Top 60%
Norridge, IL: #30 of 79 inventorsTop 40%
Illinois: #34,875 of 84,256 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Albert Bischof has been granted 2 US patents while listed as an inventor at AT&T. The first was granted in 1988 and the most recent in February 1989. Albert Bischof ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Albert Bischof in Norridge, IL, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4804238 Torsion spring powered door Norbert A. Rumps, Jr. 1989-02-14
D295976 Multifunction communication controller Leonard R. Aremka, Detlef A. Brodrueck, Donald M. Genaro, Chris G. Johnson 1988-05-31