Patents by Inventor Robert Cohen

Robert Cohen 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).

  • 1-(2-Aminoethyl)-3-(2,6-dihalophenyl)guanidines
    Patent number: 4113776
    Abstract: Antihypertensively active thiourea derivatives of the formulas ##STR1## wherein R, R.sub.1, R.sub.2, R.sub.3 and X are as hereinafter described, as well as a method of using a compound of the formula ##STR2## wherein R.sub.1 ', R.sub.2 ', R.sub.3 and X are as previously described, or a compound of formula II as an anti-hypertensive agent, is described.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: September 12, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Michael Robert Cohen, Richard Wightman Kierstead, Jefferson Wright Tilley
  • Yarn finish formulation
    Patent number: 4098702
    Abstract: A yarn finish containing a mineral oil of viscosity below that desired and a polymeric viscosity index improver such as polyisobutylene in an amount to raise the viscosity of the finish to the level desired.
    Type: Grant
    Filed: April 9, 1976
    Date of Patent: July 4, 1978
    Assignee: George A. Goulston Company, Inc.
    Inventors: Roger John Crossfield, Norman Robert Cohen
  • Yarn finish formulations
    Patent number: 4098703
    Abstract: Yarn finishes, particularly of the coning oil type, containing a hydrocarbon soluble, long molecular chain polymeric viscosity index improver, such as polyisobutylene, are disclosed herein.
    Type: Grant
    Filed: June 2, 1976
    Date of Patent: July 4, 1978
    Assignee: George A. Goulston Company, Inc.
    Inventors: Roger John Crossfield, Norman Robert Cohen
  • Thiourea derivatives for treating hypertension
    Patent number: 4096276
    Abstract: Antihypertensively active thiourea derivatives of the formulas ##STR1## wherein R, R.sub.1, R.sub.2, R.sub.3 and X are as hereinafter described,As well as a method of using a compound of the formula ##STR2## wherein R.sub.1 ', R.sub.2 ', R.sub.3 and X are as previously described,Or a compound of formula II as an anti-hypertensive agent, is described.
    Type: Grant
    Filed: January 27, 1977
    Date of Patent: June 20, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Michael Robert Cohen, Richard Wightman Kierstead, Jefferson Wright Tilley
  • Thiourea derivatives
    Patent number: 4066695
    Abstract: Antihypertensively active thiourea derivatives of the formulas ##STR1## wherein R, R.sub.1, R.sub.2, R.sub.3 and X are as hereinafter described, as well as a method of using a compound of the formula ##STR2## wherein R.sub.1 ', R.sub.2 ', R.sub.3 and X are as previously described, or a compound of formula II as an anti-hypertensive agent, is described.
    Type: Grant
    Filed: January 27, 1977
    Date of Patent: January 3, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Michael Robert Cohen, Richard Wightman Kierstead, Jefferson Wright Tilley
  • Yarn finish formulations
    Patent number: 3977979
    Abstract: Yarn finishes, particularly of the coning oil type, containing a hydrocarbon soluble, long molecular chain polymeric viscosity index improver, such as polyisobutylene, are disclosed herein.
    Type: Grant
    Filed: September 14, 1973
    Date of Patent: August 31, 1976
    Assignee: George A. Goulston Company, Inc.
    Inventors: Roger John Crossfield, Norman Robert Cohen
  • Bottle
    Patent number: D261104
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: October 6, 1981
    Inventor: Robert A. Cohen Skalli