John R. Lothrop has been granted 6 US patents while listed as an inventor at AT&T . The first was granted in 1986 and the most recent in June 1991. John R. Lothrop ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list John R. Lothrop in Longmont, CO, US.
Patents per Year Patents granted per year, 1986 to 1991 Bar chart with a peak of 2 patents in 1990. peak 2 1986: 1 patents 1986 1987: 1 patents 1987 1988: 1 patents 1988 1990: 2 patents 1990 1991: 1 patents 1991
Issued Patents All Time
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Showing 1–6 of 6 patents
Patent # Title Co-Inventors Date
5022070 Switch-adjunct interface Henry M. Forson , Thomas M. O'Dell , Rick L. Overmyer 1991-06-04
4980906 Switch-adjunct interface Henry M. Forson , Thomas M. O'Dell , Rick L. Overmyer 1990-12-25
4933967 Automatically-effected move of a subscriber between electronic message service systems in a network Stella Y. Lo , Steven Spearman , Mary L. Warren 1990-06-12
4790003 Message service system network Garry D. Kepley , Albert Mizrahi 1988-12-06
4680786 Communication system for providing business communication features to cellular mobile telecommunication customers Robin C. Baker , Steven E. Brown , Roman Lozyniak , Paul E. Miller 1987-07-14
4609778 Trunk call processing services for host computer interconnections Andrew Franklin , John D. Wiidakas 1986-09-02