Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David B. Doan — 3 Patents

IVIvac: 2 patents #30 of 96Top 35%
Qualcomm: 1 patents #7,593 of 12,104Top 65%
San Diego, CA: #9,932 of 23,606 inventorsTop 45%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
David B. Doan has been granted 3 US patents while listed as an inventor at Ivac. The first was granted in 1992 and the most recent in September 1999. David B. Doan ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list David B. Doan in San Diego, CA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5956651 Cellular telephone interface system for AMPS and CDMA data services James J. Willkie, Marc S. Phillips 1999-09-21 $232,893,000
5356378 Fluid line condition detection 1994-10-18
5087245 System and method for detecting abnormalities in intravascular infusion 1992-02-11