Patents by Inventor Stephen I. Foster

Stephen I. Foster 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).

  • Non-dusting window envelope film utilizing a particulate anti-flecking agent
    Patent number: 5190814
    Abstract: Disclosed are window envelopes and method of making wherein the window envelope film from which window patches are made contains a particulate anti-flecking agent and optionally an acid scavenger.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: March 2, 1993
    Assignee: The Dow Chemical Company
    Inventors: Stephen I. Foster, Jeffrey J. Stimler, Gail S. Nonnemacher
  • Non-dusting window envelope film utilizing a particulate anti-flecking agent
    Patent number: 5009953
    Abstract: Disclosed are window envelopes and method of making wherein the window envelope film from which window patches are made contains a particulate anti-flecking agent and optionally an acid scavenger.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: April 23, 1991
    Assignee: The Dow Chemical Company
    Inventors: Stephen I. Foster, Jeffrey J. Stimler, Gail S. Nonnemacher
  • Non-dusting window envelope film utilizing a waxy anti-flecking agent
    Patent number: 4961800
    Abstract: Disclosed are window envelopes and a method of making wherein the window envelope film from which window patches are made contains an anti-flecking agent in the form of a wax.
    Type: Grant
    Filed: July 18, 1988
    Date of Patent: October 9, 1990
    Assignee: The Dow Chemical Company
    Inventors: Stephen I. Foster, Jeffrey J. Stimler
  • Fluoride-substituted cobalt spinels
    Patent number: 4514518
    Abstract: A new and useful family of compounds is prepared by fluoride substitution into a cobalt oxide spinel, the new compounds conforming substantially to the empirical formula Co.sub.3 O.sub.x F.sub.y or M.sub.1 'M.sub.2 "--M.sub.i.sup.n Co.sub.(3-.SIGMA.) O.sub.x F.sub.y, where x+2y.congruent.4, where y is an amount such that F.ltoreq.2 wt. % of the compound, and where M.sub.1, M.sub.2, and M.sub.i each represent metal values other than Co. Thus the cobalt oxide spinel may be a single-metal spinel, a bimetal spinel, a trimetal spinel, or a polymetal spinel.
    Type: Grant
    Filed: April 22, 1982
    Date of Patent: April 30, 1985
    Assignee: The Dow Chemical Company
    Inventors: Walter W. Henslee, Stephen I. Foster