Patents by Inventor Larry E. Oppenheimer

Larry E. Oppenheimer 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: 5310632
    Abstract: A dispersion of a photographic additive in a hydrophilic colloid having improved stability against the formation of crystals by incorporated into the oil phase of the dispersion prior to mixing, less than 2 percent by weight, based on the weight of the oil phase, of a compound having the formula ##STR1## wherein R, R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are independently selected from alkyl including linear, branched or in substituted alkyl having from 1 to 25 carbon atoms, the substituents being aryl, halo, cyano; aryl, including substituted aryl, the substituents being alkyl or halo; wherein addition to the above, R may also be a siloxane or polysiloxane to give a branched molecule; and in addition to the above, R.sub.3 and R.sub.4 may also be alkoxy and m and n have values from 0 to 5000.
    Type: Grant
    Filed: September 1, 1992
    Date of Patent: May 10, 1994
    Assignee: Eastman Kodak Company
    Inventor: Larry E. Oppenheimer