Patents by Inventor Ludger Wegmann

Ludger Wegmann 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).

  • Processes for reducing the fouling of surfaces
    Patent number: 10850238
    Abstract: Process for reducing the fouling of a surface O, wherein an aqueous solution S of at least one polymer P comprising styrene and at least one ester E of (meth)acrylic acid and polyethylene oxide in a molar ratio of 0.05:1 to 50:1 is applied to said surface O.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: December 1, 2020
    Assignee: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Rupert Konradi, Cristina Cepraga, Claudia Staudt, Bernhard Von Vacano, Matthias Kellermeier, Peter Stengel, Roelf-Peter Baumann, Laurent Marty, Jelan Kuhn, Sarah-Jane Schauksdat, Ludger Wegmann, Erik Bohrer
  • PROCESSES FOR REDUCING THE FOULING OF SURFACES
    Publication number: 20180056245
    Abstract: Process for reducing the fouling of a surface O, wherein an aqueous solution S of at least one polymer P comprising styrene and at least one ester E of (meth)acrylic acid and polyethylene oxide in a molar ratio of 0.05:1 to 50:1 is applied to said surface O.
    Type: Application
    Filed: April 12, 2016
    Publication date: March 1, 2018
    Applicant: BASF SE
    Inventors: Rupert KONRADI, Cristina CEPRAGA, Claudia STAUDT, Bernhard Ulrich VON VACANO, Matthias KELLERMEIER, Peter STENGEL, Peter BAUMANN, Laurent MARTY, Jelan KUHN, Sarah-Jane SCHAUKSDAT, Ludger WEGMANN, Erik BOHRER
  • Modified polyvinyllactams
    Patent number: 8629227
    Abstract: Modified polyvinyllactams and their use.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: January 14, 2014
    Assignee: BASF SE
    Inventors: Frank Fischer, Ludger Wegmann, Michael Ehle, Stephan Bauer, Harald Meyer, Son Nguyen Kim
  • AQUEOUS METAL QUENCHING MEDIUM
    Publication number: 20120118446
    Abstract: Aqueous metal quenching media comprising vinyllactam/acrylamide copolymers
    Type: Application
    Filed: November 15, 2011
    Publication date: May 17, 2012
    Applicant: BASF SE
    Inventors: Frank FISCHER, Stephan Bauer, Erik Bohrer, Ludger Wegmann, Antonietta Mauri
  • MODIFIED POLYVINYLLACTAMS
    Publication number: 20110248428
    Abstract: Modified polyvinyllactams and their use.
    Type: Application
    Filed: December 2, 2009
    Publication date: October 13, 2011
    Applicant: BASF SE
    Inventors: Frank Fischer, Ludger Wegmann, Michael Ehle, Stephan Bauer, Harald Meyer, Son Nguyen Kim
  • Process For Preparing Graft Polymers
    Publication number: 20080255326
    Abstract: Processes for preparing graft polymers and their use for inhibiting gas hydrates
    Type: Application
    Filed: October 25, 2006
    Publication date: October 16, 2008
    Applicant: BASF SE
    Inventors: Ralf Widmaier, Ludger Wegmann, Antonietta Mauri, Klemens Mathauer, Wolfgang Jahnel, Lidcay Herrera Taboada, Karin Neubecker, Alexander Khvorost
  • Method for producing a water-in-water polyvinyl lactam dispersion with a k value of = 120
    Publication number: 20070154438
    Abstract: Method for producing water-in-water polyvinyl lactam dispersions with a K value of =120 by radical polymerisation.
    Type: Application
    Filed: April 14, 2005
    Publication date: July 5, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Lysander Chrisstoffels, Ralf Widmaier, Ivette Castro, Ludger Wegmann
  • Use of cross-linked cationic polymers in cosmetics
    Publication number: 20060165639
    Abstract: The invention relates to the use of a cationic crosslinked polymer which is preparable by free-radical polymerization in the presence of salts and of protective colloids in cosmetics.
    Type: Application
    Filed: August 29, 2003
    Publication date: July 27, 2006
    Applicant: Basf Aktiengesellschaft
    Inventors: Werner Gauweiler, Ludger Wegmann, Marc Leduc, Lysander Chrisstoffels, Michael Gotsche, Claudia Wood