Patents by Inventor Robert A. Scherrer

Robert A. Scherrer 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: 8173113
    Abstract: A bioadhesive composition that adheres suitably to a mucosal surface and is capable of delivering drugs in sustained fashion, and a patch comprising the bioadhesive composition. Methods of using and processes for preparing the bioadhesive composition are also described.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: May 8, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Matthew T. Scholz, Robert A. Scherrer, Nelda M. Marecki, Yen-Lane Chen, Joan K. Barkhaus
  • Publication number: 20080063714
    Abstract: The invention comprises compositions and methods useful for encapsulation and controlled release of guest molecules, such as drugs. Compositions of the present invention comprise a matrix comprising molecules that are non-covalently crosslinked by multi-valent cations, wherein the molecules that are non-covalently crosslinked are non-polymeric, have more than one carboxy functional group, and have at least partial aromatic or heteroaromatic character The compositions are characterized in that a guest molecule may be encapsulated within the matrix and subsequently released.
    Type: Application
    Filed: July 29, 2004
    Publication date: March 13, 2008
    Inventors: Hassan Sahouani, Robert A. Scherrer, Kim M. Vogel, Dennis E. Vogel, Stephen W. Stein, Brian J. Gabrio, Stephanie F. Bernatchez, Richard H. Ferber, Wei Zou
  • Patent number: 7186402
    Abstract: The invention comprises a medicinal aerosol composition comprising a propellant, an excipient comprising an acid or amine end-group and at least one and no more than two amide and/or ester functional groups, and a drug. The invention also comprises particulate medicinal compositions comprising particles with a mean mass aerodynamic diameter of less than about 10 microns that incorporate an excipient containing an acid or amine end-group and at least one and no more than two amide and/or ester functional groups.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: March 6, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Daniel C. Duan, Robert A. Scherrer, James S. Stefely
  • Publication number: 20030147814
    Abstract: The invention comprises hydrofluorocarbon medicinal aerosol solutions comprising an ion pair complex comprising a drug and an excipient. The invention also relates to methods for delivering a highly respirable dose to a mammal with a medicinal aerosol comprising an ion pair complex.
    Type: Application
    Filed: December 20, 2002
    Publication date: August 7, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Robert A. Scherrer, James S. Stefely, Stephen W. Stein
  • Publication number: 20030138381
    Abstract: The invention comprises a medicinal aerosol composition comprising a propellant, an excipient comprising an acid or amine end-group and at least one and no more than two amide and/or ester functional groups, and a drug. The invention also comprises particulate medicinal compositions comprising particles with a mean mass aerodynamic diameter of less than about 10 microns that incorporate an excipient containing an acid or amine end-group and at least one and no more than two amide and/or ester functional groups.
    Type: Application
    Filed: December 20, 2002
    Publication date: July 24, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Daniel C. Duan, Robert A. Scherrer, James S. Stefely
  • Patent number: 5750136
    Abstract: A bioadhesive composition that adheres suitably to a mucosal surface and is capable of delivering drugs in sustained fashion, and a patch comprising the bioadhesive composition. Methods of using and processes for preparing the bioadhesive composition are also described.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: May 12, 1998
    Assignee: Riker Laboratories, Inc.
    Inventors: Matthew T. Scholz, Robert A. Scherrer, Nelda M. Marecki, Yen-Lane Chen, Joan K. Barkhaus
  • Patent number: 5750134
    Abstract: A bioadhesive composition that adheres suitably to a mucosal surface and is capable of delivering drugs in sustained fashion, and a patch comprising the bioadhesive composition. Methods of using and processes for preparing the bioadhesive composition are also described.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: May 12, 1998
    Assignee: Riker Laboratories, Inc.
    Inventors: Matthew T. Scholz, Robert A. Scherrer, Nelda M. Marecki, Yen-Lane Chen, Joan K. Barkhaus
  • Patent number: 5527824
    Abstract: Substituted Di-T-Butylphenols useful for inhibiting the synthesis of leukotrienes are disclosed.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: June 18, 1996
    Assignee: Riker Laboratories, Inc.
    Inventor: Robert A. Scherrer
  • Patent number: 5498745
    Abstract: Novel compounds which are 2,6-di-t-butylphenols substituted on the 4 position by an anilino group, which anilino group is substituted by a carboxyl substituent, a tetrazolyl substituent or an N-methyltetrazolyl substituent, are useful antiallergic agents. Pharmaceutical compositions containing and pharmacological methods of using such compounds are also disclosed, as are synthetic intermediates for preparing such compounds. Certain of the synthetic intermediates also exhibit useful antiallergic activity.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: March 12, 1996
    Assignee: Riker Laboratories, Inc.
    Inventor: Robert A. Scherrer
  • Patent number: 5495043
    Abstract: Novel compounds which are 2,6-di-t-butylphenols substituted on the 4 position by an anilino group, which anilino group is substituted by a carboxyl substituent, a tetrazolyl substituent or an N-methyltetrazolyl substituent, are useful antiallergic agents. Pharmaceutical compositions containing and pharmacological methods of using such compounds are also disclosed, as are synthetic intermediates for preparing such compounds. Certain of the synthetic intermediates also exhibit useful antiallergic activity.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: February 27, 1996
    Assignee: Riker Laboratories, Inc.
    Inventor: Robert A. Scherrer
  • Patent number: 5416113
    Abstract: Novel compounds which are 2,6-di-t-butylphenols substituted on the 4 position by an anilino group, which anilino group is substituted by a carboxyl substituent, a tetrazolyl substituent or an N-methyltetrazolyl substituent, are useful antiallergic agents. Pharmaceutical compositions containing and pharmacological methods of using such compounds are also disclosed, as are synthetic intermediates for preparing such compounds. Certain of the synthetic intermediates also exhibit useful antiallergic activity.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: May 16, 1995
    Assignee: Riker Laboratories, Inc.
    Inventor: Robert A. Scherrer
  • Patent number: 5347036
    Abstract: Novel compounds which are 2,6-di-t-butylphenols substituted on the 4 position by an anilino group, which anilino group is substituted by a carboxyl substituent, a tetrazolyl substituent or an N-methyltetrazolyl substituent, are useful antiallergic agents. Pharmaceutical compositions containing and pharmacological methods of using such compounds are also disclosed, as are synthetic intermediates for preparing such compounds. Certain of the synthetic intermediates also exhibit useful antiallergic activity.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: September 13, 1994
    Assignee: Riker Laboratories, Inc.
    Inventor: Robert A. Scherrer
  • Patent number: 5244997
    Abstract: Amino-ester catalysts for curing water-curable isocyanate-functional materials. Also disclosed are catalysis methods and curable compositions involving amino-ester catalysts, and casting articles and methods of orthopedic casting.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: September 14, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Matthew T. Scholz, Robert A. Scherrer
  • Patent number: 5237070
    Abstract: Novel compounds which are 2,6-di-t-butylphenols substituted on the 4 position by an anilino group, which anilino group is substituted by a carboxyl substituent, a tetrazolyl substituent or an N-methyltetrazolyl substituent, are useful antiallergic agents. Pharmaceutical compositions containing and pharmacological methods of using such compounds are also disclosed, as are synthetic intermediates for preparing such compounds. Certain of the synthetic intermediates also exhibit useful antiallergic activity.
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: August 17, 1993
    Assignee: Riker Laboratories, Inc.
    Inventor: Robert A. Scherrer
  • Patent number: 5225513
    Abstract: Catalyzes methods and curable compositions involving amino-ester catalysts and isocyanate-functional materials. Also disclosed are casting articles and methods of orthopedic casting.
    Type: Grant
    Filed: August 8, 1991
    Date of Patent: July 6, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Matthew T. Scholz, Robert A. Scherrer
  • Patent number: 5103037
    Abstract: Novel compounds which are 2,6-di-t-butylphenols substituted in the 4 position by a carbamyl or acylamino group, which carbamyl or acylamino group is substituted by a group which includes an acidic substituent are useful as inhibitors of leukotriene biosynthesis and as antiallergic agents. Pharmacological methods for using such compounds and synthetic intermediates for preparing such compounds are also disclosed.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: April 7, 1992
    Assignee: Riker Laboratories, Inc.
    Inventors: Robert A. Scherrer, Mark A. Rustad
  • Patent number: 5049572
    Abstract: Novel compounds which are 2,6-di-t-butylphenols substituted in the 4 position by a carbamyl or acylamino group, which carbamyl or acylamino group is substituted by a group which includes an acidic substituent are useful as inhibitors of leukotriene biosynthesis and as antiallergic agents. Pharmacological methods for using such compounds and synthetic intermediates for preparing such compounds are also disclosed.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: September 17, 1991
    Assignee: Riker Laboratories, Inc.
    Inventors: Robert A. Scherrer, Mark A. Rustad
  • Patent number: 4851513
    Abstract: Chemically-modified collagen is prepared by reacting native collagen with a di or tri-carboxylic acid halide, di or tri-sulfonyl halide, di or tri-anhydride, or di or tri-reative active ester coupling agent. The reaction is done in a controlled manner so that the degree of cross-linking is limited. Any remaining lysine epsilon amino groups present in the coupled collagen product may be converted to carboxyamido or sulfonamido groups by acid halide, anhydride, sulfonyl halide or active ester amine-modifying agents. The resultant product when dissolved in a physiological buffer provides a viscoelastic solution having therapeutic application in a variety of surgical procedures, particularly in ophthalmic surgery. This viscoelastic solution "melts," i.e., exhibits a dramatic loss of viscosity, when subjected to temperatures of between 32.degree. and 48.degree. C.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: July 25, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Dale P. Devore, Robert A. Scherrer, Matthew T. Scholz
  • Patent number: 4716178
    Abstract: Novel compounds which are 2,6-di-t-butylphenols substituted on the 4 position by an anilino group, which anilino group is substituted by a group which includes carboxyl, tetrazolyl or N-methyltetrazolyl are useful as inhibitors of leukotriene synthesis and as antiallergic agents. Pharmaceutical compositions containing such compounds and pharmacological methods for use of such compounds are also disclosed.
    Type: Grant
    Filed: August 27, 1986
    Date of Patent: December 29, 1987
    Assignee: Riker Laboratories, Inc.
    Inventors: Robert A. Scherrer, Mark A. Rustad
  • Patent number: RE33574
    Abstract: Novel compounds which are 2,6-di-tertiary-butylphenols substituted in the 4 position by an acylaminophenyl group, which acylaminophenyl group is substituted by a moiety which includes a carboxyl group, are useful as inhibitors of leukotriene biosynthesis and as antiallergic agents.
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: April 23, 1991
    Assignee: Riker Laboratories, Inc.
    Inventors: Alan R. Kirk, Robert A. Scherrer