Patents by Inventor Milton Richlin

Milton Richlin 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).

  • Dental etchant and process of using
    Patent number: 5766012
    Abstract: An improved dental etchant and a process for using it which comprises a phosphoric acid etchant containing a colorant which changes color at a pH of about 2.5.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: June 16, 1998
    Inventors: Michael Rosenbaum, Milton Richlin, Alan J. Braverman
  • Wig stand with ventilation channels
    Patent number: 4998992
    Abstract: An improved wig stand made of a compressible, open cell foam formed to resemble the shape of the human head and having a substantially flat base and a plurality of channels sufficient to ventilate the area under a wig resting on the wig stand.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: March 12, 1991
    Inventors: Milton Richlin, Aloysius Dubeck
  • Dye-based inks with improved vehicles
    Patent number: 4108671
    Abstract: Dye-based inks include an improved organic vehicle consisting of the monoester of a dicarboxylic acid or anhydride with a monohydric or polyhydric alcohol. Because of the multiplicity of functional groups on the molecule, these vehicles show solvency characteristics for a wide variety of dye structures, including basic dyes, basic dye bases, and oil-soluble dyes.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: August 22, 1978
    Inventor: Milton Richlin