Patents by Inventor Jaan J. Fong

Jaan J. Fong 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).

  • Electroplating composition and process and surfactant compound for use therein
    Patent number: 4592809
    Abstract: Non-ionic surfactants prepared by reaction of ethoxylated bisphenols and sulfating agents such as sulfamic acid, sulfuric acid and chlorosulfonic acid are employed in metal electroplating baths and processes to increase the useful operating temperature limits of the baths in comparison to those using other non-ionic surfactants. The surfactants are particularly useful as additives in acid zinc electroplating baths, and especially acid zinc electroplating baths either completely devoid of ammonium ion or containing low amounts of ammonium ion.
    Type: Grant
    Filed: August 6, 1985
    Date of Patent: June 3, 1986
    Assignee: MacDermid, Incorporated
    Inventors: Jaan J. Fong, Donald H. Becking
  • Acidic electroplating baths with novel surfactants
    Patent number: 4270990
    Abstract: An acidic electroplating bath containing, as a surfactant, a compound of the formula:R--Ar--O--(C.sub.3 H.sub.6 O).sub.n --(C.sub.2 H.sub.4 O).sub.m --Hwherein R is at least one halide, aldehyde, amine, carboxyl, ketone or mixture thereof, Ar is benzene or naphthalene, n is from zero to 10, m is from zero to 100, and m+n is greater than zero.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: June 2, 1981
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Jaan J. Fong