Patrick E. Helmers — 2 Patents at AT&T

Patrick E. Helmers has been granted 2 US patents while listed as an inventor at AT&T. The first was granted in 1994 and the most recent in March 1995. Patrick E. Helmers ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Patrick E. Helmers in Plano, IL, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5396543	Signaling arrangements in a cellular mobile telecommunications switching system	Robert B. Beeson, Jr., Michael Stein	1995-03-07
5289179	Maintaining stable virtual circuit data connections with spare protocol handler	Robert B. Beeson, Jr., Michael Stein	1994-02-22

Patrick E. Helmers — 2 Patents

Issued Patents All Time

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