16 patents
Utility
Dual hardness sealing elements for blowout preventer
19 Sep 23
The present invention relates to sealing elements for blowout preventers comprising a sealing interface region, and a second region, wherein said sealing interface region is formed of a first polymer and said second region is formed of a second polymer, the first and second polymers having different Shore A hardnesses, including sealing elements made of dual hardness polyurethane.
Matthew P. Burdzy, Thomas Harald Peter
Filed: 31 Jan 20
Utility
Anti-wear composition for lubricants
29 Mar 22
Certain citric esters and amides, and certain mixtures thereof, e.g., mixtures comprising citrate oligomers, exhibit excellent anti-wear activity in lubricants.
Frank J. DeBlase, Joseph Stieber, Kenneth Cory MacLeod
Filed: 8 Feb 19
Utility
High densitiy clear brine fluids
1 Jun 21
Compounds are identified that act as crystallization suppressants when added to clear brine fluids, significantly lowering the true crystallization temperatures of the brines, and allowing for higher salt content in clear brine fluids.
Thomas G. Ray, Colin H. Keene, David J. Sikora, David W. Bartley, John Warner, Justin Whitfield, Dwight Tshudy, Joni P. Williams
Filed: 2 May 19
Utility
Sorting Disc for a Disc Screen Sorter
11 Mar 21
The durability of sorting discs used on disc screens, e.g., star discs comprising a body and a plurality of fingers extending radially from the body, may be improved by increasing the deflection of the fingers.
Matthew Burdzy, Thomas H. Peter, Matthew Sennett, Ian Laskowitz
Filed: 25 Mar 19
Utility
Anti-Wear Composition for Lubricants
11 Feb 21
Certain citric esters and amides, and certain mixtures thereof, e.g., mixtures comprising citrate oligomers, exhibit excellent anti-wear activity in lubricants.
Frank J. DeBlase, Joseph Stieber, Kenneth Cory MacLeod
Filed: 8 Feb 19
Utility
Alkylated Alkoxydiarylamine Antioxidants
30 Dec 20
Alkylated diaryl amines further substituted by an alkoxy group on one or more aryl carbon atoms exhibit excellent antioxidant activity in lubricant compositions.
Robert G. Rowland
Filed: 14 Sep 20
Utility
Crystallization Suppressant Combinations for High Density Clear Brine Fluids
11 Nov 20
Compounds are identified that act as crystallization suppressants when added to clear brine fluids, significantly lowering the true crystallization temperatures of the brines, and allowing for higher salt content in clear brine fluids.
Thomas G. Ray, Colin H. Keene, David J. Sikora, David W. Bartley, John Warner, Justin Whitfield, Dwight Tshudy, Joni P. Williams
Filed: 29 Jul 20
Utility
Reduced Friction Lubricants Comprising Magnesium Detergents And/or Overbased Magnesium Detergents and Molybdenum Based Friction Modifiers
11 Nov 20
The addition of mixed thio acid amide molybdenum dithiocarbamates to lubricant compositions comprising magnesium detergents and/or overbased magnesium detergents, e.g., overbased magnesium sulfonate, provides lubricant compositions that suppress Low Speed Pre-Ignition and possess excellent low friction characteristics.
Frank J. DeBlase
Filed: 13 Nov 18
Utility
Alkylated alkoxydiarylamine antioxidants
19 Oct 20
Alkylated diaryl amines further substituted by an alkoxy group on one or more aryl carbon atoms exhibit excellent antioxidant activity in lubricant compositions.
Robert G. Rowland
Filed: 12 Sep 17
Utility
Crystallization suppressant combinations for high density clear brine fluids
17 Aug 20
Compounds are identified that act as crystallization suppressants when added to clear brine fluids, significantly lowering the true crystallization temperatures of the brines, and allowing for higher salt content in clear brine fluids.
Thomas G. Ray, Colin H. Keene, David J. Sikora, David W. Bartley, John Warner, Justin Whitfield, Dwight Tshudy, Joni P. Williams
Filed: 2 Apr 18
Utility
Synergy and Enhanced Performance Retention With Organic and Molybdenum Based Friction Modifier Combination
12 Aug 20
An improved organic and molybdenum friction modifier combination is disclosed, the combination resulting in a synergistic result of both initial friction reduction performance and a further retention and durability of continued friction reduction performance.
Frank J. DeBlase
Filed: 14 Oct 18
Utility
Lubricant compositions stabilized by mixtures of diarylamine and hydroxydiarylamine antioxidants
27 Jul 20
Lubricant compositions comprising a lubricating oil and a mixture of one or more alkylated diarylamine and one or more alkylated hydroxydiarylamine exhibit excellent antioxidant and deposit control performance.
Robert G. Rowland, Subban Ramesh
Filed: 12 Sep 17
Utility
Low Ash Lubricant and Fuel Additive Comprising Alkoxylated Amine
4 Mar 20
A lubricating oil detergent composition comprises an overbased calcium sulfonate and a low ash detergent, which low ash detergent is metal free and comprises the reaction product of an acidic organic compound such as an alkylated salicylic acid, a boron compound and an amine component.
Ron Muir, John Louis DiFlavio, James-Jianjun Wei
Filed: 15 Jul 19
Utility
Storage stable activated prepolymer composition
2 Mar 20
The addition of a small amount of an alkyl sulfoxide, e.g., DMSO, to an isocyanate capped prepolymer provides a storage stable prepolymer composition in which the prepolymer is also highly activated towards curing with certain blocked curing agents such as methylenedianiline metal salt coordination complexes.
Thomas R. Doyle
Filed: 18 Sep 16
Utility
Alkylated 3-hydroxydiphenylamine antioxidants
17 Feb 20
Certain alkylated 3-hydroxyphenylamine antioxidants wherein one phenyl is substituted by at least one hydroxyl group at the 3-position relative to the amine and the other phenyl is substituted by at least one substituent having 4 or more carbon atoms are surprisingly effective antioxidants, especially in lubricating oils.
Robert G. Rowland
Filed: 12 Sep 17
Utility
Diaryl amine antioxidants prepared from branched olefins
25 Nov 19
Diaryl amines are selectively alkylated by reaction with branched olefins, which olefins are capable of forming tertiary carbonium ions and can be conveniently prepared from readily available branched alcohols.
Robert G. Rowland
Filed: 21 Jun 16
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