Patents by Inventor Donald Berger

Donald Berger 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).

  • Assays for amphetamine and methamphetamine using stereospecific reagents
    Publication number: 20050208603
    Abstract: Methods, compositions and kits are disclosed. Enzyme conjugates of Formula I may be employed in assays for the determination of an amphetamine and/or a methamphetamine. Immunogenic conjugates of Formula I may be employed to prepare antibodies for an amphetamine and/or for a methamphetamine for use in assays for the determination of an amphetamine and/or a methamphetamine. The enzyme conjugates may also be employed to screen antibodies for use in such methods.
    Type: Application
    Filed: March 22, 2004
    Publication date: September 22, 2005
    Inventors: Yi Zheng, Khaled Yamout, Donald Berger, Mae Hu, Hshiou-Ting Liu
  • Squaraine dyes
    Patent number: 5416214
    Abstract: Novel squaraine dyes and compositions of matter containing such dyes are disclosed. The novel squaraine dyes have an absorption maximum greater than 600 nanometers and are particularly useful in conjunction with a helium/neon (He/Ne) laser. Some of the squaraine dyes are hydrophilic and are therefore water soluble or water compatible and others of the squaraine dyes are lipophilic.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: May 16, 1995
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: John Pease, Thomas L. Tarnowski, Donald Berger, Chiu C. Chang, Chun-Hua Chuang
  • Squaraine dye compounds
    Patent number: 5329019
    Abstract: Novel squaraine dyes and compositions of matter containing such dyes are disclosed . The novel squaraine dyes have an absorption maximum greater than 600 nanometers and are particularly useful in conjunction with a helium/neon (He/Ne) laser. Some of the squaraine dyes are hydrophilic and are therefore water soluble or water compatible and others of the squaraine dyes are lipophilic.
    Type: Grant
    Filed: April 27, 1992
    Date of Patent: July 12, 1994
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: John Pease, Thomas L. Tarnowski, Donald Berger, Chiu C. Chang, Chun-Hua Chuang
  • Squaraine dyes
    Patent number: 5310922
    Abstract: Novel squaraine dyes and compositions of matter containing such dyes are disclosed. The novel squaraine dyes have an absorption maximum greater than 600 nanometers and are particularly useful in conjunction with a helium/neon (He/Ne) laser. Some of the squaraine dyes are hydrophilic and are therefore water soluble or water compatible and others of the squaraine dyes are lipophilic.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: May 10, 1994
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: John Pease, Thomas L. Tarnowski, Donald Berger, Chiu C. Chang, Chun-Hua Chuang
  • Squaraine dye
    Patent number: 5039818
    Abstract: Squaraine dyes and compositions of matter containing such dyes are disclosed. The squaraine dyes have an absorption maximum greater than 600 nanometers and are particularly useful in conjunction with a helium/neon (He/Ne) laser. Some of the squaraine dyes are hydrophilic and are therefore water soluble or water compatible and others of the squaraine dyes are lipophilic.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: August 13, 1991
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: John Pease, Thomas L. Tarnowski, Donald Berger, Chiu C. Chang
  • Squaraine dyes
    Patent number: 4830786
    Abstract: Squaraine dyes and compositions of matter containing such dyes are disclosed. The squaraine dyes have an absorption maximum greater than 600 nanometers and are particulary useful in conjunction with a helium/neon (He/Ne) laser. Some of the squaraine dyes are hydrophilic and are therefore water soluble or water compatible and others of the squaraine dyes are lipophilic.
    Type: Grant
    Filed: February 27, 1986
    Date of Patent: May 16, 1989
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: John Pease, Thomas L. Tarnowski, Donald Berger, Chiu C. Chang, Chun-Hua Chuang
  • Container
    Patent number: D562139
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: February 19, 2008
    Assignee: The Procter & Gamble Company
    Inventors: Paul Jerome Crabtree, Henry Young Chin, Meral J. Middleton, Ken G. Dieringer, Krista Rijn Schwartz, Richard F. Halter, II, Gregory Donald Berger, Frederick Halden Simonsen
  • Container
    Patent number: D562140
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: February 19, 2008
    Assignee: The Procter & Gamble Company
    Inventors: Paul Jerome Crabtree, Henry Young Chin, Meral J. Middleton, Ken G. Dieringer, Krista Rijn Schwartz, Richard F. Halter, II, Gregory Donald Berger, Frederick Halden Simonsen
  • Container
    Patent number: D569730
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: May 27, 2008
    Assignee: The Procter & Gamble Company
    Inventors: Paul Jerome Crabtree, Henry Young Chin, Meral J. Middleton, Ken G. Dieringer, Krista Rijn Schwartz, Richard F. Halter, II, Gregory Donald Berger, Frederick Halden Simonsen
  • Container
    Patent number: D573884
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: July 29, 2008
    Assignee: The Procter and Gamble Company
    Inventors: Paul Jerome Crabtree, Richard F. Halter, II, Gregory Donald Berger, Frederick Halden Simonsen, Christian Zmoelnig, Martin Diem