Patents by Inventor Harry W. Gibson

Harry W. Gibson 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).

  • Methods For Purification Of Trimetallic Nitride Endohedral Metallofullerenes And Related Fullerene Derivatives
    Publication number: 20080131353
    Abstract: Methods for separating and purifying carbon nanomaterials such as trimetallic nitride endohedral metallofullerenes are described. In certain embodiments, carbon nanomaterials are contacted with a carbon nanomaterial reactive agent. The reactive agent binds empty cage fullerenes, nanotubes, and endohedral metallofullerenes without appreciably binding trimetallic nitride endohedral metallofullerenes. According to some embodiments, purified forms of trimetallic nitride endohedral metallofullerenes may be prepared.
    Type: Application
    Filed: June 23, 2005
    Publication date: June 5, 2008
    Applicant: Virginia Polytechnic Institute and State University
    Inventors: Harry W. Gibson, Harry C. Dorn, Zhongxin Ge, Ting Cai
  • Reversible, mechanically interlocked polymeric networks which self-assemble
    Patent number: 6100329
    Abstract: Polymeric structure involving a first polymer having a linear segment and a second polymer having a macrocyle which is threaded onto said linear segment to form a rotaxane complex. The rotaxane complex is capable of reversibly dissociating back into the individual polymers under the influence of an external factor, such as temperature and/or solvent exposure.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: August 8, 2000
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry W. Gibson, Caiguo Gong
  • Methods of preparing polymeric ketones
    Patent number: 5442029
    Abstract: A new method for preparing commercially valuable polymeric ketones is described. The method employs an .alpha.-amiononitrile as a monomeric unit whereby an amorphous, soluble polymer having protected carbonyl moiety is obtained. Upon deprotecting the carbonyl moiety, a crystalline polymeric ketone is obtained. The method allows production of polymeric ketone materials having aromatic, aliphatic or mixed aromatic/aliphatic backbones.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: August 15, 1995
    Assignees: The Center for Innovative Technology, Virginia Polytechnic Institue & State University, Virginia Tech Intellectual Properties
    Inventors: Harry W. Gibson, Ashish Pandya
  • Aramid compositions of improved solubility and flame retardancy
    Patent number: 5420225
    Abstract: Aramid polymers, e.g., those derived from p-phenylene diamine and terephthaloyl chloride, can have their solubility properties and flame retardancy enhanced by the incorporation therein of a moiety derived from a bis(aminophenoxyphenyl) phosphine oxide, e.g., bis(3-aminophenoxy-4'-phenyl) phenylphosphine oxide.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: May 30, 1995
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Attila Gungor, James E. McGrath, Yadollah Delaviz, Harry W. Gibson
  • Commercially valuable polymeric ketones and method of preparing same
    Patent number: 5344914
    Abstract: A new method for preparing commercially valuable polymeric ketones is described. The method employs an .alpha.-amiononitrile as a monomeric unit whereby an amorphous, soluble polymer having protected carbonyl moiety is obtained. Upon deprotecting the carbonyl moiety, a crystalline polymeric ketone is obtained. The method allows production of polymeric ketone materials having aromatic, aliphatic or mixed aromatic/aliphatic backbones.
    Type: Grant
    Filed: October 5, 1992
    Date of Patent: September 6, 1994
    Assignee: The Center for Innovative Technology*
    Inventors: Harry W. Gibson, Ashish Pandya
  • Mono- and di(functionally-substituted phenylene) semi-rigid crowns and precursors thereof
    Patent number: 5331098
    Abstract: Bis(carboalkoxy-substituted m-phenylene)-32-crown-10 compounds, useful as polymerizable monomers, can be formed in one step by reacting a functionalized dihydroxy aromatic compound with a dihalopolyether. In the same reaction, carboalkoxy-substituted m-phenylene-16-crown-5 is formed. Other mono- and di-functionalized bis(phenylene) crown ethers can be made by one step as well as multistep synthesis from similar starting materials.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: July 19, 1994
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry W. Gibson, Yadollah Delaviz
  • Dibenzo crown monomers and polymers formed therefrom
    Patent number: 5302729
    Abstract: Novel bis(extraannular functionally-substituted phenylene) crown compounds, useful as chelating agents or in the synthesis of condensation polymers containing large semi-rigid macrocycles in the polymer backbone, are described. A broad range of functional groups (preferably in the 5-position) can be used in the 1,3-phenylene varieties. Carboxy functional groups are used in certain novel 1,2-phenylene crowns.
    Type: Grant
    Filed: April 16, 1991
    Date of Patent: April 12, 1994
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry W. Gibson, Yadollah Delaviz
  • Polyamide containing reissert unit(s)
    Patent number: 5194575
    Abstract: Polyamide compositions containing Reissert units can be formed by the reaction of an open chain bis Reissert compound or a mono Reissert compound with a diamine and a diacid chloride.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: March 16, 1993
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry W. Gibson, Yajnanarayana H. R. Jois
  • Isoquinoline-containing poly(Reissert compounds)
    Patent number: 5191059
    Abstract: Poly (Reissert compounds) can be formed by reaction of a coupled bis(isoquinoline), e.g., a 4,4' -coupled bis(isoquinoline), a diacid chloride, e.g. adipoyl chloride, and a source of cyanide, e.g., trimethylsilyl cyanide.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: March 2, 1993
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry W. Gibson, Yajnanarayana H. R. Jois
  • Synthesis of alpha-aminonitriles
    Patent number: 5169973
    Abstract: Alpha-aminonitriles can be synthesized by the reaction, at ambient temperature without use of catalyst, of essentially stoichiometric amounts of amine, aldehyde (either monoaldehyde or dialdehyde) and trimethylsilyl cyanide.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: December 8, 1992
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry W. Gibson, Jean-Pierre LeBlanc
  • Mono- and Di(functionally-substituted phenylene) semi-rigid crowns and processes for making
    Patent number: 5142068
    Abstract: Bis(carboalkoxy-substituted m-phenylene)-32-crown-10 compounds, useful as polymerizable monomers, can be formed in one step by reacting a functionalized dihydroxy aromatic compound with a dihalopolyether. In the same reaction, carboalkoxy-substituted m-phenylene-16-crown-5 is formed. Other mono- and di-functionalized bis(phenylene) crown ethers can be made by one step as well as multistep synthesis from similar starting materials.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: August 25, 1992
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry W. Gibson, Yadollah Delaviz
  • Bis(reissert compounds) from reaction of monoaldehyde, monoamine and diacid halide
    Patent number: 5130456
    Abstract: A bis Reissert can be formed by the initial reaction of an aliphatic or aromatic aldehyde (e.g., propionaldehyde) and primary amine (e.g., methylamine) to form a reaction product which is then reacted with a diacid chloride (e.g., adipoyl chloride).
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: July 14, 1992
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry W. Gibson, Yajnanarayana H. R. Jois
  • Preparation of open chain poly(Reissert compounds)
    Patent number: 5081219
    Abstract: An open chain poly Reissert can be formed by the initial reaction of an aromatic dialdehyde (e.g., terephthaldicaboxaldehyde) and ammonia or a primary amine (e.g., methylamine) to form a reaction product which is then reacted with an aliphatic acid chloride (e.g., adipoyl chloride).
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: January 14, 1992
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry W. Gibson, H. R. Jois Yajnanarayana
  • Formation of poly(benzimidazole)
    Patent number: 5066773
    Abstract: A poly Ressert can be formed by first reacting benzimidazole with an aliphatic diacid chloride to form bisbenzimidazole and then reacting the bisbenzimidazole with an aliphatic diacid chloride and cyanide to form the poly Reissert.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: November 19, 1991
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry W. Gibson, Yajnanarayana H. R. Jois
  • Preparation of acyclic bis (reissert compounds)
    Patent number: 5041601
    Abstract: A bis Reissert can be formed by the initial reaction of an aromatic dialdehyde (e.g., terephthaldicaboxaldehyde) and primary amine (e.g., methylamine) to form a reaction product which is then reacted with an acid chloride (e.g., benzoyl chloride).
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: August 20, 1991
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry W. Gibson, Yajnanarayana H. R. Jois
  • Bis(functionally-substituted phenylene) semi-rigid crowns and process for making
    Patent number: 5028721
    Abstract: Bis(carboalkoxy-substituted phenylene)-32-crown-10 compounds, useful as polymerizable monomers, can be formed by first reacting a functionalized dihydroxy aromatic compound with a hydroxy protecting group-substituted halopolyether, deprotecting the resulting product to form the diol, forming the corresponding tosylate, and reacting the tosylate with the same or analogous diol in a cyclization reaction to form the crown ether compound.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: July 2, 1991
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry W. Gibson, Yadollah Delaviz
  • Formation of reissert compound of benzoyl benzimidazole
    Patent number: 5001239
    Abstract: The Reissert compound of 1-benzoylbenzimidazole can be formed by reaction of an acid chloride (e.g., benzoyl chloride) and cyanide (e.g., trimethylsilyl cyanide) with benzoyl benzimidazole. It has the formula: ##STR1## and is useful as an intermediate in organic synthesis.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: March 19, 1991
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry W. Gibson, Yajnanarayana H. R. Jois
  • Formation of acyclic bis (reissert compounds)
    Patent number: 4996346
    Abstract: Bis Reissert compounds can be formed by reaction of a cyanohydrin, formed by reaction of an aldehyde and a diamine, with benzoyl chloride in the presence of an amine acid acceptor.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: February 26, 1991
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Harry W. Gibson, Yajnanarayana H. R. Jois
  • Reissert compound of bisbenzimidazole
    Patent number: 4977271
    Abstract: A Reissert compound of bisbenzimidazole can be formed by first reacting benzimidazole with an aliphatic diacid chloride to form bisbenzimidazole and then reacting the bisbenzimidazole with an aliphatic acid chloride and cyanide to form the Reissert compound thereof.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: December 11, 1990
    Assignee: Virginia Tech Intellectual Properties Inc.
    Inventors: Harry W. Gibson, Yajnanarayana H. R. Jois
  • Preparation of open chain poly(reissert compounds)
    Patent number: 4929713
    Abstract: An open chain poly Reissert can be formed by the initial reaction of an aromatic dialdehyde (e.g., terephthaldicaboxaldehyde) and primary amine (e.g., methylamine) to form a reaction product which is then reacted with an aliphatic acid chloride (e.g., adipoyl chloride).
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: May 29, 1990
    Assignee: Virginia Polytechnic Institute and State University
    Inventors: Harry W. Gibson, Yajnanarayana H. R. Jois