RE

Robert W. Evans

HS Halliburton Energy Services: 7 patents #912 of 4,711Top 20%
HC Hughes Tool Company: 5 patents #11 of 224Top 5%
IF Infinity Fluids: 3 patents #1 of 2Top 50%
SL Shandon Southern Products Limited: 2 patents #2 of 9Top 25%
DS Dailey Petroleum Services: 2 patents #2 of 6Top 35%
BI Baker International: 2 patents #21 of 111Top 20%
RS R. R. Donnelley & Sons: 2 patents #60 of 291Top 25%
PL Pilkington Group Limited: 1 patents #58 of 119Top 50%
SL Shandon Scientific Limited: 1 patents #10 of 18Top 60%
TS Telectronic Sa: 1 patents #23 of 55Top 45%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
AT Abrasive Technology: 1 patents #6 of 9Top 70%
📍 Leonidas, TX: #1 of 46 inventorsTop 3%
🗺 Texas: #917 of 125,132 inventorsTop 1%
Overall (All Time): #28,299 of 4,157,543Top 1%
71
Patents All Time

Issued Patents All Time

Showing 1–25 of 71 patents

Patent #TitleCo-InventorsDate
12281532 Predetermined load release device for a jar 2025-04-22
12252947 Adjustable hydraulic jarring device 2025-03-18
12139988 Release lugs for a jarring device 2024-11-12
11959348 Time-controlled cable-head cutter for line conveyed tools Chet Brame, Homero C. Castillo 2024-04-16
11959350 Release lugs for a jarring device 2024-04-16
11821278 Release lugs for a jarring device 2023-11-21
11802458 Predetermined load release device for a jar 2023-10-31
11702898 Adjustable hydraulic jarring device 2023-07-18
11591876 Time-controlled cable-head cutter for line conveyed tools Chet Brame, Homero C. Castillo 2023-02-28
11536106 Predetermined load release device for a jar 2022-12-27
11473385 Release lugs for a jarring device 2022-10-18
11414947 Release mechanism for a jarring tool 2022-08-16
11230901 Release lugs for a jarring device 2022-01-25
11105170 Adjustable hydraulic jarring device 2021-08-31
11105169 Release lugs for a jarring device 2021-08-31
10975649 Predetermined load release device for a jar 2021-04-13
10669800 Release lugs for a jarring device 2020-06-02
10408009 Release lugs for a jarring device 2019-09-10
10378789 Inter-axial inline fluid heater 2019-08-13
10208554 Predetermined load release device for a jar 2019-02-19
10202815 Release lugs for a jarring device 2019-02-12
10151165 Adjustable hydraulic jarring device 2018-12-11
9835355 Inter-axial inline fluid heater 2017-12-05
9764209 Golf putter 2017-09-19
9428980 Hydraulic/mechanical tight hole jar 2016-08-30