Donald Stevenson

Person

Dover, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Polymeric poly-phosphorus lubricant additives for metal working
- Patent number 10,745,639
- Issue date Aug 18, 2020
- Dover Chemical Corporation
- Mick Jakupca
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Copolymeric polyphosphite polymer stabilizers
- Patent number 9,982,112
- Issue date May 29, 2018
- Dover Chemical Corporation
- Michael R. Jakupca
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Chlorinated ester polyvinyl-chloride secondary plasticizer and rela...
- Patent number 9,963,572
- Issue date May 8, 2018
- Dover Chemical Corporation
- Michael Jakupca
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Cycloaliphatic polyphosphite
- Patent number 9,745,425
- Issue date Aug 29, 2017
- Dover Chemical Corporation
- Michael R. Jakupca
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Light-colored metal working additives
- Patent number 9,382,201
- Issue date Jul 5, 2016
- Dover Chemical Corporation
- Donald Stevenson
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cycloaliphatic polyphosphite polymer stabilizers
- Patent number 8,981,042
- Issue date Mar 17, 2015
- Dover Chemical Corporation
- Michael R. Jakupca
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Nitrated extreme pressure additives and blends
- Patent number 8,664,171
- Issue date Mar 4, 2014
- Dover Chemical Corporation
- Donald Stevenson
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Alkylphenol free-liquid polymeric phosphite polymer stabilizers
- Patent number 8,563,637
- Issue date Oct 22, 2013
- Dover Chemical Corporation
- Michael Jakupca
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for reducing plate-out of solid phosphites in polymers
- Patent number 8,445,567
- Issue date May 21, 2013
- Dover Chemical Corporation
- Donald Stevenson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Phase transfer catalyst for synthesis of pentaerythritol diphosphites
- Patent number 8,278,490
- Issue date Oct 2, 2012
- Dover Chemical Corporation
- Donald Stevenson
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Mixed alkyl-alkylaryl-phenyl phosphite polymer additive
- Patent number 8,258,215
- Issue date Sep 4, 2012
- Dover Chemical Corporation
- Michael Jakupca
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymer dispersible polybasic metal carboxylate complexes
- Patent number 7,595,412
- Issue date Sep 29, 2009
- Dover Chemical Corporation
- Thomas Jennings
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Phenol-free phosphites
- Patent number 7,470,735
- Issue date Dec 30, 2008
- Dover Chemical Corporation
- Donald R. Stevenson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Phosphite ester additive compositions
- Patent number 7,320,764
- Issue date Jan 22, 2008
- Dover Chemical Corporation
- Donald R. Stevenson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Dimeric and polymeric alkylphenol polysulfides
- Patent number 7,294,684
- Issue date Nov 13, 2007
- Dover Chemical Corporation
- Donald R. Stevenson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Solid melt blended phosphite composites
- Patent number 7,176,252
- Issue date Feb 13, 2007
- Dover Chemical Corporation
- Donald R. Stevenson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Phosphite ester additive composition
- Patent number 6,824,711
- Issue date Nov 30, 2004
- Dover Chemical Corporation
- Don R. Stevenson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Blends of phosphites and antioxidants
- Patent number 6,770,693
- Issue date Aug 3, 2004
- Dove Chemical Corporation
- Daryl Stein
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Phenol-free phosphite stabilizers
- Patent number 6,362,260
- Issue date Mar 26, 2002
- Dover Chemical Corporation
- Donald R. Stevenson
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Lactone/phosphite blends
- Patent number 6,224,791
- Issue date May 1, 2001
- Dover Chemical Corporation
- Don R. Stevenson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Lubrication process using chlorine-free lubricant
- Patent number 5,939,366
- Issue date Aug 17, 1999
- Dover Chemical Corp.
- James MacNeil
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Chlorine-free extreme pressure fluid additive
- Patent number 5,780,400
- Issue date Jul 14, 1998
- Dover Chemical Corp.
- James MacNeil
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Process for production of tris(nonylphenyl) phosphite
- Patent number 5,532,401
- Issue date Jul 2, 1996
- Dover Chemical Corporation
- Donald R. Stevenson
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Non-ozone depleting chlorination solvents
- Patent number 5,495,058
- Issue date Feb 27, 1996
- Dover Chemical Corporation
- Donald R. Stevenson
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydrolytically stable pentaerythritol diphosphites
- Patent number 5,438,086
- Issue date Aug 1, 1995
- Donald R. Stevenson
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydrolytically stable pentaerythritol diphosphites
- Patent number 5,364,895
- Issue date Nov 15, 1994
- Dover Chemical Corp.
- Donald R. Stevenson
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Compositions containing carbamothioate curing agents and their uses
- Patent number 4,246,369
- Issue date Jan 20, 1981
- SCM Corporation
- Vincent D. McGinniss
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for electrodeposition of compositions containing carbamothi...
- Patent number 4,204,932
- Issue date May 27, 1980
- SCM Corporation
- Vincent D. McGinniss
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Low-shrink thermosetting polyesters
- Patent number 4,178,326
- Issue date Dec 11, 1979
- Owens-Corning Fiberglas Corporation
- Donald R. Stevenson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Coating process with compositions of active hydrogen compound, unsa...
- Patent number 4,133,916
- Issue date Jan 9, 1979
- SCM Corporation
- Vincent D. McGinniss
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Polymeric Poly-Phosphorus Lubricant Additives for Metal Working
- Publication number 20180237719
- Publication date Aug 23, 2018
- DOVER CHEMICAL CORPORATION
- Mick JAKUPCA
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Low Pour-Point Lubricant Additives For Oiled-Based Muds and Synthet...
- Publication number 20170204320
- Publication date Jul 20, 2017
- DOVER CHEMICAL CORPORATION
- Duong Nguyen
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Chlorinated Ester Polyvinyl-Chloride Secondary Plasticizer and Rela...
- Publication number 20160369086
- Publication date Dec 22, 2016
- DOVER CHEMICAL CORPORATION
- Michael Jakupca
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Alkylphenol-free Polymeric Polyphosphite Stabilizer for Rubber Comp...
- Publication number 20160340493
- Publication date Nov 24, 2016
- DOVER CHEMICAL CORPORATION
- Michael R. Jakupca
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Alkylphenol-free Polymeric Polyphosphite Stabilizer for Polyolefin...
- Publication number 20160237264
- Publication date Aug 18, 2016
- DOVER CHEMICAL CORPORATION
- Michael R. Jakupca
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Lubricant Additives for Wellbore or Subterranean Drilling Fluids or...
- Publication number 20150218433
- Publication date Aug 6, 2015
- Duong Nguyen
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
CYCLOALIPHATIC POLYPHOSPHITE POLYMER STABILIZERS
- Publication number 20150203636
- Publication date Jul 23, 2015
- DOVER CHEMICAL CORPORATION
- Michael R. Jakupca
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
CYCLOALIPHATIC POLYPHOSPHITE
- Publication number 20140378590
- Publication date Dec 25, 2014
- DOVER CHEMICAL CORPORATION
- Michael R. Jakupca
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
LIGHT-COLORED METAL WORKING ADDITIVES
- Publication number 20140350290
- Publication date Nov 27, 2014
- Donald STEVENSON
- C07 - ORGANIC CHEMISTRY
Information Patent Application
ALKYLPHENOL FREE - LIQUID POLYMERIC POLYPHOSPHITE POLYMER STABILIZERS
- Publication number 20140329943
- Publication date Nov 6, 2014
- DOVER CHEMICAL CORPORATION
- Michael R. Jakupca
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYMER-ADDITIVE CARRIER COMPOSITION
- Publication number 20140080948
- Publication date Mar 20, 2014
- DOVER CHEMICAL CORPORATION
- Don STEVENSON
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
CYCLOALIPHATIC POLYPHOSPHITE POLYMER STABILIZERS
- Publication number 20130345346
- Publication date Dec 26, 2013
- DOVER CHEMICAL CORPORATION
- Michael R. Jakupca
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
ALKYLPHENOL FREE - LIQUID POLYMERIC POLYPHOSPHITE POLYMER STABILIZERS
- Publication number 20130225736
- Publication date Aug 29, 2013
- DOVER CHEMICAL CORPORATION
- Michael Jakupca
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
ALKYLPHENOL FREE - LIQUID POLYMERIC PHOSPHITE POLYMER STABILIZERS
- Publication number 20110263760
- Publication date Oct 27, 2011
- DOVER CHEMICAL CORPORATION
- Michael Jakupca
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Mixed alkyl-alklaryl-phenyl phosphite polymer additive
- Publication number 20110196079
- Publication date Aug 11, 2011
- DOVER CHEMICAL CORPORATION
- Michael JAKUPCA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PHASE TRANSFER CATALYST FOR SYNTHESIS OF PENTAERYTHRITOL DIPHOSPHITES
- Publication number 20110021839
- Publication date Jan 27, 2011
- DOVER CHEMICAL CORPORATION
- Donald Stevenson
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR REDUCING PLATE-OUT OF SOLID PHOSPHITES IN POLYMERS
- Publication number 20100216923
- Publication date Aug 26, 2010
- DOVER CHEMICAL CORPORATION
- Donald Stevenson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
NITRATED EXTREME PRESSURE ADDITIVES AND BLENDS
- Publication number 20080305974
- Publication date Dec 11, 2008
- DOVER CHEMICAL CORPORATION
- Donald Stevenson
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Dimeric and Polymeric Alkylphenol Polysulfides
- Publication number 20070093613
- Publication date Apr 26, 2007
- DOVER CHEMICAL CORPORATION
- Donald R. Stevenson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Polymer dispersible polybasic metal carboxylate complexes
- Publication number 20040242908
- Publication date Dec 2, 2004
- Thomas Jennings
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PHOSPHITE ESTER ADDITIVE COMPOSITIONS
- Publication number 20040183054
- Publication date Sep 23, 2004
- DOVER CHEMICAL CORPORATION
- Donald R. STEVENSON
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PHENOL-FREE PHOSPHITES
- Publication number 20040180999
- Publication date Sep 16, 2004
- DOVER CHEMICAL CORPORATION
- Donald R. STEVENSON
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Solid melt blended phosphite composites
- Publication number 20040164279
- Publication date Aug 26, 2004
- Donald R. Stevenson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Phosphite ester additive compositions
- Publication number 20030001136
- Publication date Jan 2, 2003
- Don R. Stevenson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Blends of phosphites and antioxidants
- Publication number 20020040081
- Publication date Apr 4, 2002
- Dover Chemical
- Daryl Stein
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Donald Stevenson

Person

Patents Grantslast 30 patents

Polymeric poly-phosphorus lubricant additives for metal working

Copolymeric polyphosphite polymer stabilizers

Chlorinated ester polyvinyl-chloride secondary plasticizer and rela...

Cycloaliphatic polyphosphite

Light-colored metal working additives

Cycloaliphatic polyphosphite polymer stabilizers

Nitrated extreme pressure additives and blends

Alkylphenol free-liquid polymeric phosphite polymer stabilizers

Method for reducing plate-out of solid phosphites in polymers

Phase transfer catalyst for synthesis of pentaerythritol diphosphites

Mixed alkyl-alkylaryl-phenyl phosphite polymer additive

Polymer dispersible polybasic metal carboxylate complexes

Phenol-free phosphites

Phosphite ester additive compositions

Dimeric and polymeric alkylphenol polysulfides

Solid melt blended phosphite composites

Phosphite ester additive composition

Blends of phosphites and antioxidants

Phenol-free phosphite stabilizers

Lactone/phosphite blends

Lubrication process using chlorine-free lubricant

Chlorine-free extreme pressure fluid additive

Process for production of tris(nonylphenyl) phosphite

Non-ozone depleting chlorination solvents

Hydrolytically stable pentaerythritol diphosphites

Hydrolytically stable pentaerythritol diphosphites

Compositions containing carbamothioate curing agents and their uses

Process for electrodeposition of compositions containing carbamothi...

Low-shrink thermosetting polyesters

Coating process with compositions of active hydrogen compound, unsa...

Patents Applicationslast 30 patents

Polymeric Poly-Phosphorus Lubricant Additives for Metal Working

Low Pour-Point Lubricant Additives For Oiled-Based Muds and Synthet...

Chlorinated Ester Polyvinyl-Chloride Secondary Plasticizer and Rela...

Alkylphenol-free Polymeric Polyphosphite Stabilizer for Rubber Comp...

Alkylphenol-free Polymeric Polyphosphite Stabilizer for Polyolefin...

Lubricant Additives for Wellbore or Subterranean Drilling Fluids or...

CYCLOALIPHATIC POLYPHOSPHITE POLYMER STABILIZERS

CYCLOALIPHATIC POLYPHOSPHITE

LIGHT-COLORED METAL WORKING ADDITIVES

ALKYLPHENOL FREE - LIQUID POLYMERIC POLYPHOSPHITE POLYMER STABILIZERS

POLYMER-ADDITIVE CARRIER COMPOSITION

CYCLOALIPHATIC POLYPHOSPHITE POLYMER STABILIZERS

ALKYLPHENOL FREE - LIQUID POLYMERIC POLYPHOSPHITE POLYMER STABILIZERS

ALKYLPHENOL FREE - LIQUID POLYMERIC PHOSPHITE POLYMER STABILIZERS

Mixed alkyl-alklaryl-phenyl phosphite polymer additive

PHASE TRANSFER CATALYST FOR SYNTHESIS OF PENTAERYTHRITOL DIPHOSPHITES

METHOD FOR REDUCING PLATE-OUT OF SOLID PHOSPHITES IN POLYMERS

NITRATED EXTREME PRESSURE ADDITIVES AND BLENDS

Dimeric and Polymeric Alkylphenol Polysulfides

Polymer dispersible polybasic metal carboxylate complexes

PHOSPHITE ESTER ADDITIVE COMPOSITIONS

PHENOL-FREE PHOSPHITES

Solid melt blended phosphite composites

Phosphite ester additive compositions

Blends of phosphites and antioxidants