Patents by Inventor Marion Meyer

Marion Meyer 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: 6835755
    Abstract: Naphthoquinone derivatives of Formula (1): wherein R, represents an OH group, methyl ether, ethyl ether or a similar ether, R1 represents a methyl, ethyl or similar aliphatic hydrocarbon derivative: R2 and R3 each independently represent hydrogen or a group selected from: (A), (B), or (C) wherein R5 represents an PH group, methyl ether, ethyl ether or a similar ether and R6 represents a methyl, ethyl or similar aliphatic hydrocarbon derivative: R4 represents hydrogen or a group selected from: (D), (E) or (F) wherein R7 represents an OH group, methyl ether, ethyl ether or a similar ether and R8 represents a methyl, ethyl or similar aliphatic hydrocarbon derivative: or pharmaceutically acceptable salts thereof, are useful for the treatment and/or control of a tuberculosis in a patient caused by Mycobacterium tuberculosis.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: December 28, 2004
    Assignees: University of Pretoria, South African Medical Research Council
    Inventors: Jacobus Johannes Marion Meyer, Namrita Lall
  • Patent number: 5424445
    Abstract: Alkoxylation products which are suitable as dispersants and are of the general formula I ##STR1## where A is oxygen or --CO--O-- when x and y are each 1 or is nitrogen when x+y=3,B is ethylidene or 1,2-propylidene,Z is one of the groups ##STR2## D.sup..crclbar. is formate, acetate, propionate or hydroxide, E.sup..crclbar. is carboxylate or sulfonate,M is a bridge group for completion of a pyrrolidone, succinimide or maleimide ring to give a group ##STR3## n is from 1 to 50, q is from 1 to 4,x and y are each 1 or 2, with the proviso that x+y.ltoreq.3,R.sup.1 is C.sub.8 -C.sub.30 -alkyl or, when A is oxygen, is C.sub.4 -C.sub.12 -alkyl-substituted phenyl,R.sup.2, R.sup.3 and R.sup.4 are each hydrogen, methyl or ethyl andR.sup.5 is hydrogen or methyl,a process for their preparation, their use for dispersing finely divided solids in flowable media, and formulations containing the alkoxylation products.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: June 13, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Johan H. Hendrick ter Maat, Marion Meyer, Knut Oppenlaender, Michael Zirnstein, Walter Denzinger, Lothar Franz
  • Patent number: 5342561
    Abstract: A process for thermoplastic processing and sintering an unplastifiable polymer comprises dispersing the unplastifiable polymer in powder form in a melt of a polyacetal or a mixture of polyacetals, cooling the resulting mixture, granulating it, forwarding the granules to a thermoplastic processing stage, injection or extrusion molding, exposing the molding to an atmosphere which contains an acidic gas, thereby de-polymerizing the polyacetal, enveloping the remaining porous molding on all sides in a gas/liquid-impermeable film, heating in an autoclave, and isostatically sintering the molding with pressure from all sides to form the finished article.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: August 30, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Josef Sterzel, Marion Meyer
  • Patent number: 5145900
    Abstract: Thermoplastic materials for the production of ceramic moldings containA) 40-65% by volume of a sinterable inorganic non-metallic powder,B) 35-60% by volume of a mixture ofB1) 70-90% by weight of a polyoxymethylene homo- or copolymer having up to 10 mol % of comonomer units andB2) 10-30% by weight of a polyoxymethylene copolymer with a comonomer content of 20-99 mol %, poly-1,3-dioxolane, poly-1,3-dioxane or poly-1,3-dioxepan, or of a polymer which is homogeneously dissolved or is dispersed with a mean particle size of less than 1 .mu.m in B1) or a mixture thereof,as a binder, andC) 0-5% by volume of a dispersant.
    Type: Grant
    Filed: January 17, 1992
    Date of Patent: September 8, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Josef Sterzel, Johan H. H. Ter Maat, Johan Ebenhoech, Marion Meyer