Patents by Inventor Prem Thapa

Prem Thapa 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).

  • Rubber formulation with enhanced flex fatigued resistance
    Patent number: 10508196
    Abstract: A rubber composition is provided which exhibits a high level of flex fatigue resistance, ozone resistance, building tack, bondability to diene based rubbers, and low temperature resistance. The rubber composition contains EPDM rubber, natural rubber, high cis-1,4-polybutadiene rubber, and from 5 phr to 30 phr of a butyl ionomer.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: December 17, 2019
    Assignee: CONTITECH TECHNO-CHEMIE GMBH
    Inventors: Guangzhuo Rong, Thomas George Burrowes, Prem Thapa
  • Rubber Formulation with Enhanced Flex fatigued resistance
    Publication number: 20180208756
    Abstract: A rubber composition is provided which exhibits a high level of flex fatigue resistance, ozone resistance, building tack, bondability to diene based rubbers, and low temperature resistance. The rubber composition contains EPDM rubber, natural rubber, high cis-1,4-polybutadiene rubber, and from 5 phr to 30 phr of a butyl ionomer.
    Type: Application
    Filed: June 29, 2016
    Publication date: July 26, 2018
    Applicant: ContiTech Techno-Chemie GmbH
    Inventors: Guangzhuo Rong, Thomas George Burrowes, Prem Thapa
  • Encapsulant materials and associated devices
    Patent number: 8183329
    Abstract: Compositions suitable for use as encapsulants are described. The inventive compositions include a high molecular weight polymeric material, a curing agent, an inorganic compound, and a coupling agent. Optional elements include adhesion promoting agents, colorants, antioxidants, and UV absorbers. The compositions have desirable diffusivity properties, making them suitable for use in devices in which a substantial blocking of moisture ingress is desired, such as photovoltaic (PV) modules.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: May 22, 2012
    Assignees: BRP Manufacturing Company, Alliance for Sustainable Energy, LLC
    Inventors: Michael D Kempe, Prem Thapa
  • ENCAPSULANT MATERIALS AND ASSOCIATED DEVICES
    Publication number: 20110160359
    Abstract: Compositions suitable for use as encapsulants are described. The inventive compositions include a high molecular weight polymeric material, a curing agent, an inorganic compound, and a coupling agent. Optional elements include adhesion promoting agents, colorants, antioxidants, and UV absorbers. The compositions have desirable diffusivity properties, making them suitable for use in devices in which a substantial blocking of moisture ingress is desired, such as photovoltaic (PV) modules.
    Type: Application
    Filed: March 7, 2011
    Publication date: June 30, 2011
    Inventors: MICHAEL D. KEMPE, PREM THAPA
  • Encapsulant materials and associated devices
    Patent number: 7902301
    Abstract: Compositions suitable for use as encapsulants are described. The inventive compositions include a high molecular weight polymeric material, a curing agent, an inorganic compound, and a coupling agent. Optional elements include adhesion promoting agents, colorants, antioxidants, and UV absorbers. The compositions have desirable diffusivity properties, making them suitable for use in devices in which a substantial blocking of moisture ingress is desired, such as photovoltaic (PV) modules.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: March 8, 2011
    Assignees: BRP Manufacturing Company, Alliance For Sustainable Energy, LLC
    Inventors: Michael D Kempe, Prem Thapa
  • ENCAPSULANT MATERIALS AND ASSOCIATED DEVICES
    Publication number: 20090032101
    Abstract: Compositions suitable for use as encapsulants are described. The inventive compositions include a high molecular weight polymeric material, a curing agent, an inorganic compound, and a coupling agent. Optional elements include adhesion promoting agents, colorants, antioxidants, and UV absorbers. The compositions have desirable diffusivity properties, making them suitable for use in devices in which a substantial blocking of moisture ingress is desired, such as photovoltaic (PV) modules.
    Type: Application
    Filed: June 2, 2008
    Publication date: February 5, 2009
    Inventors: Michael D. Kempe, Prem Thapa