Patents by Inventor Peter Witt

Peter Witt 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).

  • Mixtures of solids, consisting of a reactive sizing agent and starch, method for producing said mixtures and use thereof
    Publication number: 20070074641
    Abstract: Solid mixtures of a reactive size and starch, which are obtainable by mixing at least one reactive size with at least one starch in a melt in the presence of at least one destructuring agent for starch under the action of shear forces at from 65 to 250° C. and cooling the melt to room temperature, are used in the form of aqueous dispersions as process assistants in papermaking.
    Type: Application
    Filed: October 15, 2004
    Publication date: April 5, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Rainer Dyllick-Brenzinger, Thomas Kebler, Norbert Guntherberg, Peter Witt, Roland Ettl
  • Test reagent for amylase determination
    Patent number: 4902621
    Abstract: An aqueous stabilized enzyme preparation to be used for measuring the amount of .alpha.-amylase in a liquid sample like serum or urine containing a blocked and labeled oligosaccharide being the substrate for the .alpha.-amylase to be measured in the presence of exo-enzymes which aqueous preparation, preferably consisting of two separate solutions is stabilized by adding a buffer, a taurocholic acid derivative, an albumin, and a polyhydric alcohol.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: February 20, 1990
    Assignee: Akzo N.V.
    Inventor: Peter Witt
  • Test kit for the determination of activated thromboplastin time (PTT) with increased sensitivity to heparin
    Patent number: 4672030
    Abstract: Partial thromboplastin time (PTT) is determined for monitoring and controlling heparin therapy with a test kit having increased sensitivity to heparin. Increased sensitivity is obtained by including with reagents in the test kit an organic sulfuric acid or salt thereof such as dodecylbenzenesulfuric acid--sodium salt and/or an organic sulfuric acid ester or salt thereof such as sodium laurylsulfate.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: June 9, 1987
    Inventor: Peter Witt