Patents by Inventor Robert Roberts

Robert Roberts has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5536583
    Abstract: A coating composition including a polyether resin and comprising a major amount of resin and a minor amount of a property-improving additive,said resin being:(A) a fluorocarbon resin selected from the group consisting of (1) perfluoroalkoxy tetrafluoroethylene copolymer resin (PFA), (2) ethylenechlorotrifluoroethylene copolymer resin (E-CTFE), (3) ethylenetetrafluoroethylene copolymer resin (E-TFE), (4) poly(vinylidine fluoride) resin (PVDF), (5) tetrafluoroethylene-hexafluoropropylene copolymer resin (FEP), (6) poly(chlorotrifluoroethylene) resin (CTFE), or a mixture of two or more of said fluorocarbon resins; and/or(B) a polyether resin selected from the group consisting of (7) polyethersulfone resin (PES), (8) polyether ketone resin (PEK) and (9) polyether ether ketone resin (PEEK) or a mixture or two or more of said polyether resins;said additive being:(C) a poly(phenylene sulfide) (PPS); or(D) an inorganic crystalline ceramic powder and/or fluorocarbon resin when said resin is a polyether of (B) above; o
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: July 16, 1996
    Assignee: Edlon Products, Inc.
    Inventors: Robert Roberts, Steven E. Rau, Kevin P. Pochopien, Harris L. Morris
  • Patent number: 5093403
    Abstract: A coating composition comprising a major amount of resin and a minor amount of a property-improving additive,said resin being:(A) a fluorocarbon resin selected from the group consisting of (1) perfluoroalkoxy tetrafluoroethylene copolymer resin (PFA), (2) ethylenechlorotrifluoroethylene copolymer resin (E-CTFE), (3) ethylenetetrafluoroethylene copolymer resin (E-TFE), (4) poly(vinylidene fluoride) resin (PVDF), (5) tetrafluoroethylene-hexafluoropropylene copolymer resin (FEP), (6) poly(chlorotrifluoroethylene) resin (CTFE), or a mixture of two or more of said fluorocarbon resins; or(B) a polyether resin selected from the group consisting of (7) polyethersulfone resin (PES), (8) polyether ketone resin (PEK) and (9) polyether ether ketone resin (PEEK) or a mixture or two or more of said polyether resin;said additive being:(C) a poly(phenylene sulfide) (PPS); or(D) an inorganic crystalline ceramic powder and/or fluorocarbon resin when said resin is a polyether of (B) above; or(E) an inorganic material selected f
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: March 3, 1992
    Assignee: Edlon Products, Inc.
    Inventors: Steven E. Rau, Robert Roberts, Kevin P. Pochopien, Charles W. Paul, Royce A. Bulter, Allan J. MacKinlay, Harris L. Morris, Raymond J. Weinert
  • Patent number: 4897439
    Abstract: A coating composition comprising a major amount of resin and a minor amount of a property-improving additive,said resin being:(A) a fluorocarbon resin selected from the group consisting of (1) perfluoroalkoxy tetrafluoroethylene copolymer resin (PFA), (2) ethylenechlorotrifluoroethylene copolymer resin (E-CTFE), (3) ethylenetetrafluoroethylene copolymer resin (E-TFE), (4) poly(vinylidine fluoride) resin (PVDF), (5) tetrafluoroethylene-hexafluoropropylene copolymer resin (FEP), (6) poly(chlorotrifluoroethylene) resin (CTFE), or a mixture of two or more of said fluorocarbon resins; or(B) a polyether resin selected from the group consisting of (7) polyethersulfone resin (PES), (8) polyether ketone resin (PEK) and (9) polyether ether ketone resin (PEEK) or a mixture of two or more of said polyether resins;said additive being:(C) a poly(phenylene sulfide) (PPS); or(D) an inorganic crystalline ceramic powder and/or fluorocarbon resin when said resin is a polyether of (B) above; or(E) an inorganic material selected
    Type: Grant
    Filed: June 30, 1987
    Date of Patent: January 30, 1990
    Assignee: Edlon Products, Inc.
    Inventors: Steven E. Rau, Robert Roberts, Kevin P. Pochopien, Charles W. Paul, Royce A. Butler, Allan J. Mackinlay, Harris L. Morris, Raymond J. Weinert
  • Patent number: 4267271
    Abstract: Methods and materials are disclosed for quantitative detection of isoenzymes of creatine kinase having a B-subunit by radioimmunoassay competitive displacement techniques with antibodies to human MB CK. The antibodies are specific for MB and BB creatine kinase and have no cross-reactivity with MM creatine kinase. Radioisotopically labelled isoenzymes with of creatine kinase having the same affinity for antibodies raised against human MB CK are also disclosed, which with the aforementioned antibodies provide a highly sensitive radioimmunoassay capable of measuring picomolar amounts of MB CK or BB CK.
    Type: Grant
    Filed: August 1, 1979
    Date of Patent: May 12, 1981
    Assignee: Washington University
    Inventor: Robert Roberts
  • Patent number: 4237219
    Abstract: Methods and materials for quantitative detection of MB and BB isoenzymes of creatine kinase by radioimmunoassay competitive displacement techniques involving antibodies to human BB isoenzyme which are specific for the B monomer, react with BB CK and cross-react with MB CK, but do not cross-react with MM CK. An acylating agent is employed to radioactively label purified CK isoenzymes used as antigens. Incubation is preferably carried out in a Tris buffer having a pH of about 7.4, in the presence of a suitable organic reducing agent such as mercaptoethanol.
    Type: Grant
    Filed: October 27, 1977
    Date of Patent: December 2, 1980
    Assignee: Washington University
    Inventor: Robert Roberts
  • Patent number: 4166536
    Abstract: Corrosive chemicals are contained in metallic vessels, the inside portion of which is coated with a homogeneous, porous polymer containing inorganic filler. The particle size, shape and distribution provides a controlled porosity which allows entrapped permeants from the corrosive chemical to escape, yet does not significantly affect the utility of the protective coating as a chemical corrosion barrier protecting the metallic vessel.
    Type: Grant
    Filed: March 16, 1977
    Date of Patent: September 4, 1979
    Assignee: The Carborundum Company
    Inventors: Robert Roberts, Frank M. Chapman
  • Patent number: D415870
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: October 26, 1999
    Inventors: Brian Severson, Robert Roberts, Ted Perna