Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Don Mitchell — 22 Patents

TSTelecommunication Systems: 19 patents #13 of 236Top 6%
SPSperry: 2 patents #196 of 841Top 25%
Bellevue, WA: #507 of 6,950 inventorsTop 8%
Washington: #4,130 of 76,902 inventorsTop 6%
Overall (All Time): #189,202 of 4,157,543Top 5%
22 Patents All Time
Don Mitchell has been granted 22 US patents while listed as an inventor at Telecommunication Systems. The first was granted in 1980 and the most recent in August 2016. Don Mitchell ranks #189,202 of 4,157,543 US inventors in our database (top 4.6%). Patent records list Don Mitchell in Bellevue, WA, US.

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9407774 Temporary enum gateway 2016-08-02
9390615 Emergency alert for voice over internet protocol (VoIP) Richard Dickinson, Jonathan Croy 2016-07-12
9374696 Automated proximate location association mechanism for wireless emergency services Andrew Singer, Firdaus Aryana, Roger S. Marshall 2016-06-21
9357078 SS7 ISUP to SIP based call signaling conversion gateway for wireless VolP E911 2016-05-31
9344578 SS7 ANSI-41 to SIP based call signaling conversion gateway for wireless VoIP E911 2016-05-17
9197450 SS7 MAP/Lg+ to sip based call signaling conversion gateway for wireless VoIP 2015-11-24 $852,000
9087132 Location aware content using presence information data formation with location object (PIDF-LO) 2015-07-21 $973,000
8971314 SS7 ANSI-41 to SIP based call signaling conversion gateway for wireless VoIP E911 2015-03-03 $810,000
8954029 Integrated services user part (ISUP)/ session initiation protocol (SIP) gateway for unlicensed mobile access (UMA) emergency services call flow 2015-02-10 $838,000
8774171 SS7 ANSI-41 to SIP based call signaling conversion gateway for wireless VoIP E911 2014-07-08 $1,810,000
8644302 Temporary ENUM gateway 2014-02-04 $1,119,000
8489064 Integrated services user part (ISUP)/session initiation protocol (SIP) gateway for unlicensed mobile access (UMA) emergency services call flow 2013-07-16 $982,000
8228897 SS7 ANSI-41 to SIP based call signaling conversion gateway for wireless VoIP E911 2012-07-24 $817,000
8208461 SS7 MAP/Lg+ to SIP based call signaling conversion gateway for wireless VoIP E911 2012-06-26 $273,000
8185567 Location aware content using presence information data formation with location object (PIDF-LO) 2012-05-22 $480,000
8155109 SS7 ISUP to SIP based call signaling conversion gateway for wireless VoIP E911 2012-04-10 $460,000
8090341 Integrated services user part (ISUP) /session initiation protocol (SIP) gateway for unlicensed mobile access (UMA) emergency services call flow 2012-01-03 $196,000
7933385 Emergency alert for voice over internet protocol (VoIP) Richard Dickinson, Jonathan Croy 2011-04-26 $1,665,000
7852834 Temporary ENUM gateway 2010-12-14 $1,100,000
6193692 Verres needle with high flow adaptor Bruce Harris 2001-02-27
4506108 Copper body power hybrid package and method of manufacture Dennis R. Kersch 1985-03-19 $1,837,000
4222629 Fiber optic connector assembly Michael A. Dassele, Stephen T. Kush 1980-09-16 $2,103,000