Patents by Inventor David C. Zajac

David C. Zajac 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).

  • Body powder compositions
    Patent number: 4568539
    Abstract: Body powder compositions exhibiting excellent moisture absorbency comprising starch and a specific pregelatinized cornstarch.
    Type: Grant
    Filed: August 3, 1983
    Date of Patent: February 4, 1986
    Assignee: Johnson & Johnson Baby Products Company
    Inventors: William H. Ashton, Robert S. Russell, David C. Zajac
  • Talc compositions
    Patent number: 4485092
    Abstract: Talc powder compositions exhibiting excellent moisture absorbency comprising talc and a specific pregelatinized cornstarch.
    Type: Grant
    Filed: August 3, 1983
    Date of Patent: November 27, 1984
    Assignee: Johnson & Johnson Baby Products Company
    Inventors: William H. Ashton, Robert S. Russell, David C. Zajac
  • Hair conditioner having a stabilized, pearlescent effect
    Patent number: 4275055
    Abstract: A hair conditioner is provided having a stable pearlescent effect which is achieved in the absence of nacreous or synthetic pearlescing agents. In addition to the usual substances for controlling pH, for conditioning, for emulsifying, and for preserving, this hair conditioner also includes two conditioning agents which together serve to produce a pearlescent effect that remains stable and does not settle. These agents are preferably stearamidopropyl dimethyl benzylammonium chloride and stearyl dimethyl benzylammonium chloride in the ratios of about 2.5 to about 7.5% and about 2 to about 5%, by weight, respectively, together with about 0.25% to about 0.75% by weight of sodium chloride.
    Type: Grant
    Filed: June 22, 1979
    Date of Patent: June 23, 1981
    Assignee: Conair Corporation
    Inventors: Julius H. Nachtigal, David C. Zajac