Patents by Inventor Hans Johansson

Hans Johansson 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: 4200548
    Abstract: The disclosure relates generally to the detergent art and more specifically to a silicic acid detergent product for the microdeposition of silicic acid on textiles. The product comprises essentially an adduct (hydrogen bond compound) of oligomer and/or polymer silicic acid with polyethylene oxide compounds together with alkali, M.sub.2 O, where M is selected from the group consisting of Na, K, Li, alkanolamines and a quaternary ammonium group, amounting to a molar ratio SiO.sub.2 :M.sub.2 O>4, or preferably 6-100, said product being physically or colloidally soluble in laundry medium inside a pH of 8-12, in which medium it serves as a microdepositor for silicic acid on laundry textiles.
    Type: Grant
    Filed: March 8, 1978
    Date of Patent: April 29, 1980
    Assignee: Elektrokemiska Aktiebolaget
    Inventors: Olof Sunden, Hans Johansson, Hakan B. Ahlberg, Per-Arne I. Karlsson
  • Patent number: 4112524
    Abstract: A shower bath tub has a bottom portion with a water outlet, and an upright portion on this bottom portion provided with a top which has a funnel shaped collecting bowl extending down into a space where it is connected to a discharge conduit. A toilet seat is disposed above the collecting bowl and the shower water flushes any feces from the toilet seat and the collecting bowl into the discharge conduit.
    Type: Grant
    Filed: July 12, 1976
    Date of Patent: September 12, 1978
    Inventor: Hans A. Johansson