Patents by Inventor Karl Engelhardt

Karl Engelhardt 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).

  • Publication number: 20190045755
    Abstract: The invention relates to a vivarium system which is composed of combinable individual containers (II) and plant climbing aids and is provided with magnetic adhesion to ferromagnetically equipped walls and ceilings (I) having a painted and/or plastered and/or lined surface. Vitalization of inner spaces, facades and free spaces by a module system that can be combined in a variable manner and is composed of small biotopes such as aquariums, terrariums, aviaries, paludariums and other vivariums for small animals, birds, insects and plants, for the fastening to walls and ceilings without causing damage to the visible surfaces by drillings for dowels, pins and screws and without rigid bonds with the fastening base.
    Type: Application
    Filed: February 3, 2017
    Publication date: February 14, 2019
    Inventor: Karl ENGELHARDT
  • Patent number: 6309439
    Abstract: The coated fertilizer granules are coated with a carboxyl-carrying ethylene copolymer in which the carboxyl groups may also be in the form of their salts, the carboxyl-carrying ethylene copolymer being composed of a) from 75 to 90% by weight of ethylene and b) from 10 to 25% by weight of an &agr;-olefinically unsaturated C3-C8-alkanecarboxylic acid, and those coated fertilizer granules which contain an active ingredient for crop protection being excepted.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: October 30, 2001
    Assignee: K + S Aktiengesellschaft
    Inventors: Klaus Horchler von Locquenghien, Karl Engelhardt, Eberhard Kleinbach, Michael Wolfgang Müller
  • Patent number: 6187074
    Abstract: The coated fertilizer granules are coated with a carboxyl-carrying ethylene copolymer in which the carboxyl groups may also be in the form of their salts, the carboxyl-carrying ethylene copolymer being composed of a) from 75 to 90% by weight of ethylene and b) from 10 to 25% by weight of an &agr;-olefinically unsaturated C3-C8-alkanecarboxylic acid, and those coated fertilizer granules which contain an active ingredient for crop protection being excepted.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: February 13, 2001
    Assignee: K + S Aktiengesellschaft
    Inventors: Klaus Horchler von Locquenghien, Karl Engelhardt, Eberhard Kleinbach, Michael Wolfgang Müller