Patents by Inventor Dagobert E. Stuetz

Dagobert E. Stuetz 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: 4983325
    Abstract: In one embodiment this invention provides a high performance nonlinear optical medium which comprises a transparent organic polymer film containing an array of charge asymmetric molecules such as 13,13-diamino-14,14-dicyanodiphenoquinodimethane: ##STR1##
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: January 8, 1991
    Assignee: Hoechst Celanese Corp.
    Inventors: Eui W. Choe, Alan Buckley, Dagobert E. Stuetz, Anthony F. Garito
  • Patent number: 4944895
    Abstract: This invention provides an optical medium which consists of a composite of a homogeneous inorganic oxide glass monolith with a microporous structure containing a liquid crystalline component.In one embodiment this invention provides a sol-gel process for producing a composite of a transparent homogeneous microporous inorganic oxide glass monolith and a liquid crystalline compound.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: July 31, 1990
    Assignee: Hoechst Celanese Corp.
    Inventors: Alan Buckley, Tessie M. Che, Thomas M. Leslie, James B. Stamatoff, Dagobert E. Stuetz, Donald R. Ulrich
  • Patent number: 4938896
    Abstract: In one embodiment this invention provides a high performance nonlinear optical medium which comprises a transparent organic polymer film containing an array of charge asymmetric molecules such as 13,13-diamino-14,14-dicyanodiphenoquinodimethane: ##STR1##
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: July 3, 1990
    Assignee: Hoechst Celanese Corp.
    Inventors: Eui W. Choe, Alan Buckley, Dagobert E. Stuetz, Anthony F. Garito
  • Patent number: 4937013
    Abstract: This invention provides an optical medium which consists of a composite of a homogeneous inorganic oxide glass monolith with a microporous structure containing a liquid crystalline polymer component.In one embodiment this invention provides a sole-gel process for producing a composite of a transparent homogeneous microporous inorganic oxide glass monolith and a liquid crystalline polymer.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: June 26, 1990
    Assignee: Hoechst Celanese Corp.
    Inventors: Alan Buckley, Tessie M. Che, Thomas M. Leslie, James B. Stamatoff, Dagobert E. Stuetz, Donald R. Ulrich
  • Patent number: 4933111
    Abstract: This invention provides an optical medium which consists of a composite of a homogeneous inorganic oxide glass monolith with a microporous structure containing a liquid crystalline polymer component.In one embodient this invention provides a sol-gel process for producing a composite of a transparent homogeneous microporous inorganic oxide glass monolith and a liquid crystalline polymer.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: June 12, 1990
    Assignee: Hoechst Celanese Corp.
    Inventors: Alan Buckley, Tessie M. Che, Thomas M. Leslie, James B. Stamatoff, Dagobert E. Stuetz, Donald R. Ulrich
  • Patent number: 4898454
    Abstract: This invention provides an optical medium which consists of a composite of a homogeneous inorganic oxide glass monolith with a microporous structure containing a liquid crystalline component. In one embodiment this invention provides a sol-gel process for producing a composite of a transparent homogeneous microporous inorganic oxide glass monolith and a liquid crystalline compound.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: February 6, 1990
    Assignee: Hoechst Celanese Corporation
    Inventors: Alan Buckley, Tessie M. Che, Thomas M. Leslie, James B. Stamatoff, Dagobert E. Stuetz, Donald R. Ulrich
  • Patent number: 4898755
    Abstract: This invention provides an optical medium which consists of an inorganic glass monolith with a microporous structure containing an organic component which exhibits nonlinear optical response.In one embodiment this invention provides a sol-gel process for producing a composite of a transparent homogeneous microporous inorganic oxide glass monolith and an organic compound which exhibits nonlinear optical response.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: February 6, 1990
    Assignee: Hoechst Celanese Corporation
    Inventors: Tessie M. Che, Dagobert E. Stuetz, Alan Buckley, Donald R. Ulrich
  • Patent number: 4898691
    Abstract: In one embodiment this invention provides a nonlinear optical medium consisting of a solid solution of components comprising (1) a thermoplastic polymer such as poly(methyl acrylate/butyl acrylate); (2) a first organic compound which exhibits nonlinear optical response such as 4-amino-4'-nitrostilbene; and (3) a second organic compound such as methyl acrylate which complexes with and enhances the nonlinear optical response of the first organic compound.
    Type: Grant
    Filed: May 16, 1988
    Date of Patent: February 6, 1990
    Assignee: Hoechst Celanese Corporation
    Inventors: Marie Borzo, Dagobert E. Stuetz
  • Patent number: 4877298
    Abstract: This invention provides a thin film waveguide electrooptic intensity modulation device. The thin film waveguide is an isotropic organic medium which exhibits nonlinear optical response. The device is adapted to modulate waveguided radiation by refractive index change commensurate with change in an applied electric field.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: October 31, 1989
    Assignee: Hoechst Celanese Corporation
    Inventors: Chia-Chi Teng, Dagobert E. Stuetz
  • Patent number: 4861129
    Abstract: This invention provides an optical medium which consists of an inorganic glass monolith with a microporous structure containing an organic component which exhibits nonlinear optical response.In one embodiment this invention provides a sol-gel process for producing a composite of a transparent homogeneous microporous inorganic oxide glass monolith and an organic compound which exhibits nonliner optical response.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: August 29, 1989
    Assignee: Hoechst Celanese Corp.
    Inventors: Tessie M. Che, Dagobert E. Stuetz, Alan Buckley, Donald R. Ulrich
  • Patent number: 4851270
    Abstract: This invention provides an optical medium which consists of an inorganic glass monolith with a microporous structure containing an organic component which exhibits nonlinear optical response.In one embodiment this invention provides a sol-gel process for producing a composite of a transparent homogeneous microporous inorganic oxide glass monolith and an organic compound which exhibits nonlinear optical response.
    Type: Grant
    Filed: April 17, 1987
    Date of Patent: July 25, 1989
    Assignee: Hoechst Celanese Corporation
    Inventors: Tessie M. Che, Dagobert E. Stuetz, Alan Buckley, Donald R. Ulrich
  • Patent number: 4828888
    Abstract: This invention provides an optical medium which consists of a composite of a homogeneous inorganic oxide glass monolith with a microporous structure containing a liquid crystalline polymer component.In one embodiment this invention provides a sol-gel process for producing a composite of a transparent homogeneous microporous inorganic oxide glass monolith and a liquid crystalline polymer.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: May 9, 1989
    Assignee: Hoecast Celanese Corporation
    Inventors: Alan Buckley, Tessie M. Che, Thomas M. Leslie, James B. Stamatoff, Dagobert E. Stuetz, Doanld R. Ulrich
  • Patent number: 4814211
    Abstract: This invention provides an optical medium which consists of a composite of homogeneous inorganic oxide glass monolith with a microporous structure containing a liquid crystalline component.In one embodiment this invention provides a sol-gel process for producing a composite of a transparent homogeneous microporous inorganic oxide glass monolith and a liquid crystalline compound.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: March 21, 1989
    Assignee: Hoechst Celanese Corporation
    Inventors: Alan Buckley, Tessie M. Che, Thomas M. Leslie, James B. Stamatoff, Dagobert E. Stuetz, Donald R. Ulrich
  • Patent number: 4788164
    Abstract: This invention provides a sustained release composite composition which consists of an inorganic oxide glass monolith with a microporous volume that contains a volatile organic component and a nonvolatile organic component.In one embodiment the invention provides an article of jewelry which contains an invention composite with a gem-like appearance and a sustained release fragrance.
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: November 29, 1988
    Assignee: Hoechst Celanese Corporation
    Inventors: Tessie M. Che, Dagobert E. Stuetz
  • Patent number: 4767169
    Abstract: This invention provides a thin film waveguide electrooptic intensity modulation device. The thin film waveguide is an isotropic organic medium which exhibits nonlinear optical response. The device is adapted to modulate waveguided radiation by refractive index change commensurate with change in an applied electric field.
    Type: Grant
    Filed: February 26, 1987
    Date of Patent: August 30, 1988
    Assignee: Hoechst Celanese Corporation
    Inventors: Chia-Chi Teng, Dagobert E. Stuetz
  • Patent number: 4707303
    Abstract: In one embodiment this invention provides a high performance nonlinear optical substrate which comprises a transparent organic polymer film containing an array of charge asymmetric molecules such as 13,13-diamino-14,14-dicyanodiphenoquinodimethane: ##STR1##
    Type: Grant
    Filed: June 25, 1985
    Date of Patent: November 17, 1987
    Assignee: Celanese Corporation
    Inventors: Alan Buckley, Eui W. Choe, Dagobert E. Stuetz, Anthony F. Garito
  • Patent number: 4624872
    Abstract: In one embodiment this invention provides a polymeric, nonlinear optical medium comprising a thin substrate of wholly aromatic thermotropic liquid crystal polymer having an uniaxial orthogonal molecular orientation.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: November 25, 1986
    Assignee: Celanese Corporation
    Inventor: Dagobert E. Stuetz
  • Patent number: 4460708
    Abstract: An improved process which makes possible the expeditious formation of activated carbon fibers having high absorptivity characteristics is provided. A polybenzimidazole fibrous material is contacted with a solution of an acid (e.g. sulfuric acid) so as to form a polybenzimidazonium salt (as described), and the resulting fibrous material is preoxidized, carbonized, and activated under the conditions defined which have been found to reliably and expeditiously yield the desired product. The resulting activated carbon fiber product exhibits a dynamic weight absorptivity of at least 100 mg. of CCl.sub.4 per gram, and particularly is suited for the formation of protective garments having highly satisfactory sorptive characteristics.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: July 17, 1984
    Assignee: Celanese Corporation
    Inventor: Dagobert E. Stuetz
  • Patent number: 4397321
    Abstract: This invention provides tobacco and non-tobacco smoking compositions which deliver smoke of reduced tar and nicotine content, and with a substantially reduced carbon monoxide content.In one of its embodiments this invention provides smoking preparations which contain a combustible filler, and uniformly dispersed therein a catalyst composition consisting of (a) fine ash, and (b) a transition metal compound.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: August 9, 1983
    Assignee: Celanese Corporation
    Inventor: Dagobert E. Stuetz