Inventor
ARMSTRONG CHARLES DAVID
US24 patents
⚠️ This page may combine multiple inventors who share the name “ARMSTRONG CHARLES DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAKER HUGHES INC
11 patentsUS10190038B2Jan 29, 2019
Method of using sophorolipids in well treatment operations
BAKER HUGHES INC24 citations93
US9884986B2Feb 6, 2018
Method of using biosurfactants as acid corrosion inhibitors in well treatment operations
BAKER HUGHES INC21 citations92
US9683164B2Jun 20, 2017
Method of using sophorolipids or mannosylerythritol lipids as acid corrosion inhibitors in well treatment operations
BAKER HUGHES INC30 citations92
US9505044B2Nov 29, 2016
Method of treating produced or flowback water with nucleophilic agent to deactivate breaker
BAKER HUGHES INC3 citations68
US8863838B2Oct 21, 2014
Use of hexose oxidases to create hydrogen peroxide in aqueous well treatment fluids
BAKER HUGHES INC3 citations63
US10053610B2Aug 21, 2018
Antifreeze proteins for use in downhole fluids
BAKER HUGHES INC0 citations52
US9624418B2Apr 18, 2017
Antifreeze proteins for use in downhole fluids
BAKER HUGHES INC0 citations52
US9790251B2Oct 17, 2017
Conversion of cellulose into simple sugars
BAKER HUGHES INC0 citations51
US10196554B2Feb 5, 2019
Decreasing foulant deposition on at least one surface by contacting the surface(s) with at least one protein
BAKER HUGHES INC0 citations49
US9822594B2Nov 21, 2017
Method of treating produced or flowback water with nucleophilic agent to deactivate breaker
BAKER HUGHES INC1 citations48
US10660978B2May 26, 2020
Decreasing microorganisms in fluids using ultrasonic wave technologies
BAKER HUGHES INC0 citations46
ARMSTRONG CHARLES DAVID
7 patentsUS8486867B2Jul 16, 2013
Method of fracturing using mannanohydrolase enzyme breaker
ARMSTRONG CHARLES DAVID8 citations83
US8096360B2Jan 17, 2012
Alkaline β-mannanase containing compositions useful for the hydrolysis of guar in high pH environments and methods related thereto
ARMSTRONG CHARLES DAVID7 citations83
US8844629B2Sep 30, 2014
Method of fracturing using alkaliphile derived enzyme breaker
ARMSTRONG CHARLES DAVID4 citations72
US9090814B2Jul 28, 2015
Well treatment fluids containing an ylide or a vitamin B and methods of using the same
ARMSTRONG CHARLES DAVID4 citations71
US8517095B2Aug 27, 2013
Method of using hexose oxidases to create hydrogen peroxide in aqueous well treatment fluids
ARMSTRONG CHARLES DAVID4 citations62
US8058212B2Nov 15, 2011
Method of fracturing using mannanohydrolase enzyme breaker
ARMSTRONG CHARLES DAVID2 citations61
US8833457B2Sep 16, 2014
Sulfates and phosphates as allosteric effectors in mannanohydrolase enzyme breakers
ARMSTRONG CHARLES DAVID1 citations46
BAKER HUGHES A GE CO LLC
4 patentsUS11162017B2Nov 2, 2021
Decreasing foulant deposition on at least one surface by contacting the surface(s) with at least one protein
BAKER HUGHES A GE CO LLC0 citations60
US10934471B2Mar 2, 2021
Decreasing foulant deposition on at least one surface by contacting the surface(s) with at least one protein
BAKER HUGHES A GE CO LLC0 citations60
US10822541B2Nov 3, 2020
Method of using Sophorolipids in well treatment operations
BAKER HUGHES A GE CO LLC0 citations51
US10731072B2Aug 4, 2020
Method of preventing or mitigating formation of metal sulfide scales during oil and gas production
BAKER HUGHES A GE CO LLC0 citations51