Joan Feigenbaum — 2 Patents at AT&T

Joan Feigenbaum has been granted 2 US patents while listed as an inventor at AT&T. The first was granted in 2001 and the most recent in November 2025. Joan Feigenbaum ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Joan Feigenbaum in New York, NY, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
12463947	Privacy preserving protocol for serving user-specific supplemental content	Eric Crockett, Gangyao Wang	2025-11-04
6256734	Method and apparatus for compliance checking in a trust management system	Matthew A. Blaze, Martin J. Strauss	2001-07-03

Joan Feigenbaum — 2 Patents

Issued Patents All Time

Patent Widget