Patents by Inventor Donald H. Berry

Donald H. Berry 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).

  • &bgr;-substituted organosilsesquioxane polymers
    Patent number: 6770726
    Abstract: Silsesquioxane polymers that are useful for preparing SiO2-rich ceramic coatings are obtained as the polymeric reaction products from the hydrolysis and condensation of organosilanes having a &bgr;-substituted alkyl group. A preferred silsesquioxane polymer is the polymeric reaction product obtained from &bgr;-chloroethyltrichlorosilane. More preferred silsesquioxones are those with non-halogenated alkyl groups, such as the &bgr;-acetoxyethyl- and &bgr;-hydroxyethyl-silsesquioxones. Coating compositions containing such silsesquioxane polymers dissolved in organic solvent may be applied to a substrate and converted to SiO2-rich ceramic thin layers by evaporating the solvent and heating the coated substrate at moderate temperatures.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: August 3, 2004
    Assignees: Gelest, Inc., University of Pennsylvania
    Inventors: Barry C. Arkles, Donald H. Berry
  • Method of using siloxane polymers
    Patent number: 5853808
    Abstract: Silsesquioxane polymers that are useful for preparing SiO.sub.2 -rich ceramic coatings are obtained as the polymeric reaction products from the hydrolysis and condensation of organosilanes having a .beta.-substituted alkyl group. A preferred silsesquioxane polymer is the polymeric reaction product obtained from .beta.-chloroethyltrichlorosilane. Coating compositions containing such silsesquioxane polymers dissolved in organic solvent may be applied to a substrate and converted to SiO.sub.2 -rich ceramic thin layers by evaporating the solvent and heating the coated substrate at moderate temperatures.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: December 29, 1998
    Assignees: Gelest Inc., University of Pennsylvania
    Inventors: Barry C. Arkles, Donald H. Berry, Lisa Kiernan Figge
  • Method of synthesizing arylsilanes
    Patent number: 5508460
    Abstract: An improved method for synthesizing arylsilanes is disclosed. Novel catalysts for use in the method are provided. A method for synthesizing the novel catalysts is also disclosed.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: April 16, 1996
    Assignee: Trustees of the University of Pennsylvania
    Inventors: Donald H. Berry, Peter I. Djurovich
  • Organometallic precursors in conjunction with rapid thermal annealing for synthesis of thin film ceramics
    Patent number: 5217754
    Abstract: An organometallic precursor mixture is formed containing desired components of a final ceramic. This precursor mixture is dissolved in an organic solvent. The dissolved mixture is then spin cast or otherwise evenly deposited onto a wafer substrate. Finally, the coated wafer substrate is annealed by a process of Rapid Thermal Annealing to produce a thin ceramic film and to remove any organic material. This process exhibits preferential crystal growth to produce a uniform thin film.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: June 8, 1993
    Assignee: Trustees of the University of Pennsylvania
    Inventors: Jorge J. Santiago-Aviles, Donald H. Berry