Patents by Inventor Richard M. Stern

Richard M. Stern 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).

  • 3-Naphthyl benzofurans
    Patent number: 4298532
    Abstract: 2-Nitrobenzofurans in which the furan ring is either fused to or substituted by a fused bicyclic system, which are active as antimicrobial agents, processes for their use and intermediates therefor are described.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: November 3, 1981
    Assignee: Riker Laboratories, Inc.
    Inventors: Robert A. Scherrer, Richard M. Stern
  • 5H-Indeno[5,6-b]furans
    Patent number: 4260547
    Abstract: 2-Nitrobenzofurans in which the furan ring is either fused to or substituted by a fused bicyclic system, which are active as antimicrobial agents, processes for their use and intermediates therefor are described.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: April 7, 1981
    Assignee: Riker Laboratories, Inc.
    Inventors: Robert A. Scherrer, Richard M. Stern
  • Phenoxy phenyl ethanones
    Patent number: 4231965
    Abstract: 2-Nitrobenzofurans in which the furan ring is either fused to or substituted by a fused bicyclic system, which are active as antimicrobial agents, processes for their use and intermediates therefor are described.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: November 4, 1980
    Assignee: Riker Laboratories, Inc.
    Inventors: Robert A. Scherrer, Richard M. Stern
  • Amine derivatives of 2-nitro-3-phenylbenzofuran
    Patent number: 4212865
    Abstract: 2-Nitro-3-phenylbenzofurans wherein the benzo or 3-phenyl portion of the molecule is bonded directly to an optionally substituted amino group, which are active as antimicrobial agents and processes for their use.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: July 15, 1980
    Assignee: Riker Laboratories, Inc.
    Inventors: Robert A. Scherrer, Richard M. Stern, Vernon R. Fletcher
  • Acidic 3-phenylbenzofurans
    Patent number: 4208335
    Abstract: Acidic 2-nitro-3-phenylbenzofurans and their pharmaceutically acceptable salts which are active as antimicrobial agents, processes for their use and intermediates therefor are described.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: June 17, 1980
    Assignee: Riker Laboratories, Inc.
    Inventors: Robert A. Scherrer, Walton J. Hammar, Richard M. Stern
  • 3-Naphthyl-2-nitrobenzofurans
    Patent number: 4154848
    Abstract: 2-Nitrobenzofurans in which the furan ring is either fused to or substituted by a fused bicyclic system, which are active as antimicrobial agents, processes for their use and intermediates therefor are described.
    Type: Grant
    Filed: September 19, 1978
    Date of Patent: May 15, 1979
    Assignee: Riker Laboratories, Inc.
    Inventors: Robert A. Scherrer, Richard M. Stern
  • Oxy, thio, sulfenyl and sulfonyl derivatives of 2-nitro-3-phenylbenzofuran
    Patent number: 4153716
    Abstract: Compounds wherein 2-nitro-3-phenylbenzofuran is substituted by one or two alcohol or thioalcohol-containing functional groups, or derivatives thereof, are active as antimicrobial agents.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: May 8, 1979
    Assignee: Riker Laboratories, Inc.
    Inventors: Robert A. Scherrer, Walton J. Hammar, Richard M. Stern
  • 3-(N-Imidazolyl)-2-nitrobenzofurans
    Patent number: 4144347
    Abstract: 3-(N-Imidazolyl)-2-nitrobenzofurans, optionally substituted on the benzo ring, which are active as antimicrobial agents and processes for their use.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: March 13, 1979
    Assignee: Riker Laboratories, Inc.
    Inventor: Richard M. Stern
  • Anti-microbial 2-nitro-3-phenyl benzofurans substituted by carboxy containing group
    Patent number: 4143154
    Abstract: Acidic 2-nitro-3-phenylbenzofurans and their pharmaceutically acceptable salts which are active as antimicrobial agents, processes for their use and intermediates therefor are described.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: March 6, 1979
    Assignee: Riker Laboratories, Inc.
    Inventors: Robert A. Scherrer, Walton J. Hammar, Richard M. Stern
  • Antimicrobial polycyclic nitrofurans
    Patent number: 4128659
    Abstract: 2-Nitrobenzofurans in which the furan ring is either fused to or substituted by a fused bicyclic system, which are active as antimicrobial agents, processes for their use and intermediates therefor are described.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: December 5, 1978
    Assignee: Riker Laboratories, Inc.
    Inventors: Robert A. Scherrer, Richard M. Stern