Patents by Inventor Don A. Dearwester

Don A. Dearwester 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).

  • Adjuvants for use in vaccines
    Patent number: 7393535
    Abstract: The invention relates to adjuvants that contain a lecithin, an oil and an amphiphilic surfactant and that are capable of forming a stable oil-in-water emulsion vaccine so as to minimize local reactions to the vaccine in the injected animal.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: July 1, 2008
    Assignee: Pfizer Inc.
    Inventors: David S. Roberts, Leroy A. Swearingin, Don A. Dearwester
  • Adjuvants for use in vaccines
    Patent number: 6814971
    Abstract: The invention relates to adjuvants that contain a lecithin, an oil and an amphiphilic surfactant and that are capable of forming a stable oil-in-water emulsion vaccine so as to minimize local reactions to the vaccine in the injected animal.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: November 9, 2004
    Assignee: Pfizer Inc.
    Inventors: David S. Roberts, Leroy A. Swearingin, Don A. Dearwester
  • Leptospira vaccine antigens for the prevention of Leptospirosis
    Patent number: 6800734
    Abstract: Four antigenic preparations are provided, each of which contains a different protein from Leptospira which can be used immunologically in vaccines for leptospirosis caused by this organism. Also provided in the invention are polynucleotides encoding these four proteins and antibodies which bind the proteins for use in the diagnosis of leptospirosis.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: October 5, 2004
    Assignees: Pfizer Inc., Pfizer Products Inc.
    Inventors: Eric A. Utt, Michael Stephen Willy, Don A. Dearwester
  • Adjuvants for use in vaccines
    Patent number: 6733754
    Abstract: The invention relates to adjuvants that contain a lecithin, an oil and an amphiphilic surfactant and that are capable of forming a stable oil-in-water emulsion vaccine so as to minimize local reactions to the vaccine in the injected animal.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: May 11, 2004
    Assignees: Pfizer, Inc., Pfizer Products, Inc.
    Inventors: David S. Roberts, Leroy A. Swearingin, Don A. Dearwester
  • Leptospira vaccine antigens for the prevention of Leptospirosis
    Publication number: 20040043391
    Abstract: Four Antigenic preparations are provided, each of which contains a different protein from Leptospira which can be used immunologically in vaccines for leptospirosis caused by this organism. Also provided in the invention are polynucleotides encoding these four proteins and antibodies which bind the proteins for use in the diagnosis of leptospirosis.
    Type: Application
    Filed: September 25, 2002
    Publication date: March 4, 2004
    Inventors: Eric A. Utt, Michael Stephen Willy, Don A. Dearwester
  • Adjuvants for use in vaccines
    Publication number: 20030175299
    Abstract: The invention relates to adjuvants that contain a lecithin, an oil and an amphiphilic surfactant and that are capable of forming a stable oil-in-water emulsion vaccine so as to minimize local reactions to the vaccine in the injected animal.
    Type: Application
    Filed: March 13, 2003
    Publication date: September 18, 2003
    Inventors: David S. Roberts, Leroy A. Swearingin, Don A. Dearwester
  • Adjuvants for use in vaccines
    Publication number: 20030175308
    Abstract: The invention relates to adjuvants that contain a lecithin, an oil and an amphiphilic surfactant and that are capable of forming a stable oil-in-water emulsion vaccine so as to minimize local reactions to the vaccine in the injected animal.
    Type: Application
    Filed: March 13, 2003
    Publication date: September 18, 2003
    Inventors: David S. Roberts, Leroy A. Swearingin, Don A. Dearwester
  • Adjuvants for use in vaccines
    Publication number: 20030175309
    Abstract: The invention relates to adjuvants that contain a lecithin, an oil and an amphiphilic surfactant and that are capable of forming a stable oil-in-water emulsion vaccine so as to minimize local reactions to the vaccine in the injected animal.
    Type: Application
    Filed: March 13, 2003
    Publication date: September 18, 2003
    Inventors: David S. Roberts, Leroy A. Swearingin, Don A. Dearwester
  • Adjuvants for use in vaccines
    Publication number: 20030175298
    Abstract: The invention relates to adjuvants that contain a lecithin, an oil and an amphiphilic surfactant and that are capable of forming a stable oil-in-water emulsion vaccine so as to minimize local reactions to the vaccine in the injected animal.
    Type: Application
    Filed: March 13, 2003
    Publication date: September 18, 2003
    Inventors: David S. Roberts, Leroy A. Swearingin, Don A. Dearwester
  • Adjuvants for use in vaccines
    Patent number: 6572861
    Abstract: The invention relates to adjuvants that contain a lecithin, an oil and an amphiphilic surfactant and that are capable of forming a stable oil-in-water emulsion vaccine so as to minimize local reactions to the vaccine in the injected animal.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: June 3, 2003
    Inventors: David S. Roberts, Leroy A. Swearingin, Don A. Dearwester
  • Leptospira vaccine antigens for the prevention of Leptospirosis
    Patent number: 6482924
    Abstract: Four antigenic preparations are provided, each of which contains a different protein from Leptospira which can be used immunologically in vaccines for leptospirosis caused by this organism. Also provided in the invention are polynucleotides encoding these four proteins and antibodies which bind the proteins for use in the diagnosis of leptospirosis.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: November 19, 2002
    Assignees: Pfizer Inc., Pfizer Products, Inc.
    Inventors: Eric A. Utt, Michael Stephen Willy, Don A. Dearwester
  • Multicomponent clostridial vaccines using saponin adjuvants
    Publication number: 20010002256
    Abstract: Novel multicomponent clostridial vaccine formulations using readily dispersible, non-depot adjuvants are disclosed. The vaccines can be administered to cattle intramuscularly or subcutaneously, without the severe, persistent local reactions, such as granulomas, abscesses and scarring, normally seen with other multicomponent clostridial vaccines.
    Type: Application
    Filed: January 11, 2001
    Publication date: May 31, 2001
    Inventors: Roberts S. David, Don A. Dearwester