Patents by Inventor Graciano J. Tapia

Graciano J. Tapia 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: 4651467
    Abstract: Polymeric compositions particularly suitable for agricultural purposes are disclosed. These compositions contain at least 80% of either a polyolefin such as polyethylene or a copolymer of ethylene. A 0.5-15% additive containing the bond boron-oxygen such as anhydrous borax imparts a desirable opacity to these polymers in the high wavelength infra-red region of the spectrum, while not substantially interfering with the visible light necessary for photosynthesis.
    Type: Grant
    Filed: September 11, 1984
    Date of Patent: March 24, 1987
    Assignee: Alcudia, Empresa para la Industria Quimica, S.A.
    Inventors: Graciano J. Tapia, Oscar G. Martinez
  • Patent number: 4559381
    Abstract: Polymeric compositions particularly suitable for agricultural purposes are disclosed. These compositions contain at least 80% of either a polyolefin such as polyethylene or a copolymer of ethylene. A 0.5-15% additive containing the bond boron-oxygen such as anhydrous borax imparts a desirable opacity to these polymers in the high wavelength infra-red region of the spectrum, while not substantially interfering with the visible light necessary for photosynthesis.
    Type: Grant
    Filed: January 13, 1984
    Date of Patent: December 17, 1985
    Assignee: Alcudia, Empresa Para la Indusrria Quimica, S.A.
    Inventors: Graciano J. Tapia, Oscar G. Martinez
  • Patent number: 4170087
    Abstract: Polyethylene or EVA copolymer film which includes up to about 15% by weight of an additive preferably a mixture of alunite - aluminum hydroxide is disclosed for particular use as a cover for agricultural purposes. The disclosed film has improved properties which provide growth of plants and/or crops by reducing thermal losses to the atmosphere and by minimizing shadow formation. The physical characteristics of the film are equal to or better than conventional films.
    Type: Grant
    Filed: August 22, 1978
    Date of Patent: October 9, 1979
    Assignee: Alcudia, Empresa Para la Industria Quimica, S.A.
    Inventor: Graciano J. Tapia
  • Patent number: 4134875
    Abstract: Polyethylene or EVA copolymer film which includes up to about 15% by weight of an additive preferably a mixture of alunite - aluminum hydroxide is disclosed for particular use as a cover for agricultural purposes. The disclosed film has improved properties which provide growth of plants and/or crops by reducing thermal losses to the atmosphere and by minimizing shadow formation. The physical characteristics of the film are equal to or better than conventional films.
    Type: Grant
    Filed: March 17, 1978
    Date of Patent: January 16, 1979
    Assignee: Alcudia Empresa Para la Industria Quimica, S.A.
    Inventor: Graciano J. Tapia