Patents by Inventor Stanley F. Bedell

Stanley F. Bedell 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).

  • Cable jacketing
    Patent number: 5384879
    Abstract: Lightly crosslinked aromatic polymers are suitable in water sealing applications such as geomembranes used around building sub structures and also in cable jacketing to protect submarine cables from moisture intrusion.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: January 24, 1995
    Assignee: Camelot Technologies, Inc.
    Inventors: Speros P. Nemphos, Stanley F. Bedell
  • Sulphonation process for low crosslinked polystyrene
    Patent number: 5280082
    Abstract: Crosslinked styrenic polymers may be sulphonated in a controlled manner in an organic solvent at elevated temperature using SO.sub.3 in the presence of a trialkyl phosphate. The process does not introduce further crosslinking into the polymer permitting it to have an extremely high water uptake. The resulting polymer is useful as a hydrogel.
    Type: Grant
    Filed: March 24, 1993
    Date of Patent: January 18, 1994
    Assignee: Camelot Technologies, Inc.
    Inventors: Stanley F. Bedell, Speros P. Nemphos
  • Ink jet transparency
    Patent number: 4547405
    Abstract: An ink jet recording sheet comprising a transparent support carrying a layer comprising 5-100% by weight of a coalesced block copolymer latex of polyvinyl alcohol with polyvinyl (benzyl ammonium chloride) and 0-95% by weight of a water-soluble polymer selected from the group consisting of polyvinyl alcohol, polyvinyl pyrrolidone and copolymers thereof.
    Type: Grant
    Filed: December 13, 1984
    Date of Patent: October 15, 1985
    Assignee: Polaroid Corporation
    Inventors: Stanley F. Bedell, Michael S. Viola
  • Graft copolymers as diffusion control layers in photographic diffusion transfer products
    Patent number: 4201587
    Abstract: A .beta.-eliminating graft copolymer useful as a diffusion control layer in film units adapted for diffusion transfer processes is disclosed.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: May 6, 1980
    Assignee: Polaroid Corporation
    Inventors: Stanley F. Bedell, Charles I. Sullivan, Lloyd D. Taylor
  • Novel graft copolymers having vinylbenzyl ammonium halide residues
    Patent number: 4080346
    Abstract: Novel graft polymers particularly useful as diffusion transfer image dye mordants.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: March 21, 1978
    Assignee: Polaroid Corporation
    Inventor: Stanley F. Bedell