Michael Davitt has been granted 5 US patents while listed as an inventor at AT&T . The first was granted in 1995 and the most recent in October 2002. Michael Davitt ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Michael Davitt in Berkeley Heights, NJ, US.
Patents per Year Patents granted per year, 1995 to 2002 Bar chart with a peak of 2 patents in 2002. peak 2 1995: 1 patents 1995 1999: 1 patents 1999 2000: 1 patents 2000 2002: 2 patents 2002
Issued Patents All Time
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Showing 1–5 of 5 patents
Patent # Title Co-Inventors Date
6463139 Combination pre-paid and calling card Louis N. Delery , Leonard Matulewski 2002-10-08
6385308 Telephone system and method for personalized announcements Steven Cohen , A. Helen McGrath , Ronald Nemeth 2002-05-07
6137872 Combination pre-paid and calling card Louis N. Delery , Leonard Matulewski 2000-10-24
5946380 Communications system and method with call expenditure control Steve L. Cohen , Leonard Matulewski , Alan B. Moshinsky , Kathleen T. Quinn , Usha Rao 1999-08-31
5392343 On demand language interpretation in a telecommunications system Alan N. Dunn , Paula M. Goldstein , Edgar J. Grijalva , Michael Neal , Christine Patricia Peterson +1 more 1995-02-21