Michael Callahan — 3 Patents at AT&T

Michael Callahan has been granted 3 US patents while listed as an inventor at AT&T. The first was granted in 1985 and the most recent in July 2012. Michael Callahan ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Michael Callahan in Albuquerque, NM, US.

Patents per Year

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
8219919	Method for automating construction of the flow of data driven applications in an entity model	Michael Norring, Kishore Chaliparambil, Kalpana Narayanaswamy, Jonathan E. Gordon, Jean-Jacques Dubray +2 more	2012-07-10
7062532	Method and apparatus for drawing collaboration on a network	Mark Edward Sweat, Cyrus Masayuki Kamada, Chris Alan Vogelsberg, John East	2006-06-13	$23,505,000
4540978	Bistatic pulse-overlap Doppler radar intrusion detection apparatus	Bryan L. Burns	1985-09-10

Michael Callahan — 3 Patents

Patents per Year

Issued Patents All Time

Patent Widget