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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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John Starr — 4 Patents

Schlumberger Technology: 2 patents #2,630 of 7,293Top 40%
HPHand Held Products: 1 patents #481 of 724Top 70%
Cedar Rapids, IA: #399 of 1,358 inventorsTop 30%
Iowa: #3,794 of 15,303 inventorsTop 25%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
John Starr has been granted 4 US patents while listed as an inventor at Schlumberger Technology. The first was granted in 1990 and the most recent in September 2021. John Starr ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list John Starr in Cedar Rapids, IA, US.

Patents per Year

Patents granted per year, 1990 to 2021Bar chart with a peak of 1 patents in 1990.peak 11990: 1 patents19902013: 1 patents20132017: 1 patents20172021: 1 patents2021

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11125217 Pressure-reducing choke assembly Gustavo Plaza, Kim A. Hodgson, Gocha Chochua, Walter Taylor, Donald E. Hensley +1 more 2021-09-21 $48,287,000
9606581 Automated contact cleaning system for docking stations Mark Howe, Paul R. Morris, Paul W. Hulett 2017-03-28
8616555 Packing assembly for reciprocating pumps Garud Sridhar, Mike Wedge, Joe Hubenschmidt, Terry Riddle 2013-12-31 $63,842,000
4916976 Infinitely continuously variable drive transmission 1990-04-17