CS

Chester Ledlie Sandberg

Shell Oil Compny: 17 patents #148 of 4,423Top 4%
RL Raychem Limited: 5 patents #137 of 928Top 15%
GR General Energy Recovery: 3 patents #2 of 14Top 15%
PC Precision Combustion: 3 patents #25 of 58Top 45%
ER Energy Recovery: 1 patents #32 of 50Top 65%
TC Tyco Electronics Co.: 1 patents #700 of 1,364Top 55%
📍 Palo Alto, CA: #796 of 9,675 inventorsTop 9%
🗺 California: #17,896 of 386,348 inventorsTop 5%
Overall (All Time): #131,137 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 1–25 of 29 patents

Patent #TitleCo-InventorsDate
10760394 System and method of producing oil Benjamin Baird, Sandeep Alavandi, J. Kevin Burns, Bruce Crowder, Brian Kay +2 more 2020-09-01
10557336 System and method of producing oil Benjamin Baird, Sandeep Alavandi, J. Kevin Burns, Bruce Crowder, Brian Kay +2 more 2020-02-11
10273790 System and method of producing oil Benjamin Baird, Sandeep Alavandi, J. Kevin Burns, Bruce Crowder, Brian Kay +2 more 2019-04-30
9290273 Adaptive freeze, snow or ice protection system and method James C. Thompson 2016-03-22
9051829 Perforated electrical conductors for treating subsurface formations Xueying Xie, Oluropo Rufus Ayodele, Harold J. Vinegar, Christopher Harris, John Michael Karanikas +1 more 2015-06-09
8881806 Systems and methods for treating a subsurface formation with electrical conductors Xueying Xie, Oluropo Rufus Ayodele, Harold J. Vinegar, Christopher Harris, John Michael Karanikas +1 more 2014-11-11
8742604 Systems and methods for combined flow control and electricity generation Timothy Dyer, Mark Richter, Rafael Andres Bañados Contreras 2014-06-03
8410892 Conductive matrix power control system with biasing to cause tripping of the system 2013-04-02
8355623 Temperature limited heaters with high power factors Harold J. Vinegar, Christopher Harris 2013-01-15
8238730 High voltage temperature limited heaters Harold J. Vinegar, Christopher Harris, Jaime Santos Son, Fredrick Gordon Carl, Jr. 2012-08-07
8224163 Variable frequency temperature limited heaters Harold J. Vinegar, Christopher Harris, Jaime Santos Son, Fredrick Gordon Carl, Jr. 2012-07-17
8224164 Insulated conductor temperature limited heaters Harold J. Vinegar, Christopher Harris, Jaime Santos Son, Fredrick Gordon Carl, Jr. 2012-07-17
8200072 Temperature limited heaters for heating subsurface formations or wellbores Harold J. Vinegar, Christopher Harris, Jaime Santos Son, James Louis Menotti, Fredrick Gordon Carl, Jr. 2012-06-12
7831133 Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration Harold J. Vinegar 2010-11-09
7575052 In situ conversion process utilizing a closed loop heating system Thomas David Fowler, Harold J. Vinegar, Willen Jan Antoon Henri Schoeber 2009-08-18
7559367 Temperature limited heater with a conduit substantially electrically isolated from the formation Harold J. Vinegar 2009-07-14
7490665 Variable frequency temperature limited heaters Harold J. Vinegar, Christopher Harris 2009-02-17
7481274 Temperature limited heaters with relatively constant current Harold J. Vinegar, Christopher Harris 2009-01-27
7431076 Temperature limited heaters using modulated DC power Harold J. Vinegar 2008-10-07
7360588 Thermal processes for subsurface formations Harold J. Vinegar, Peter Veenstra, Steven Paul Giles, Frederick Henry Kreisler Rambow, Christopher Harris +9 more 2008-04-22
7353872 Start-up of temperature limited heaters using direct current (DC) 2008-04-08
7121341 Conductor-in-conduit temperature limited heaters Harold J. Vinegar, Christopher Harris, Jaime Santos Son, Fredrick Gordon Carl, Jr. 2006-10-17
7121342 Thermal processes for subsurface formations Harold J. Vinegar, Peter Veenstra, Steven Paul Giles, Frederick Henry Kreisler Rambow, Christopher Harris +9 more 2006-10-17
6288372 Electric cable having braidless polymeric ground plane providing fault detection Albert J. Highe, Jose P. Gamarra, Lawrence J. White, Frank Orecchia, Ted M. Aune 2001-09-11
4849611 Self-regulating heater employing reactive components Wells Whitney, Brian Kennedy 1989-07-18