Patents by Inventor Georg Malamet

Georg Malamet 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).

  • Process for the manufacture of bis(4-hydroxyaryl)alkanes
    Patent number: 6486363
    Abstract: The present invention relates to a process for the manufacture of bis(4-hydroxyaryl)alkanes by heterogeneous acid-catalyzed reaction of aromatic hydroxy compounds with ketones in reactors connected in series, which in the direction of advancing conversion are operated with rising temperature and optionally with increasing loading.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: November 26, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Berg, Hans-Josef Buysch, Alfred Eitel, Gerhard Fennhoff, Georg Malamet, Clauss Wulff
  • Process for the continuous production of high purity bisphenol A
    Patent number: 5545764
    Abstract: The present invention provides a process for the production of high purity bisphenol A by special in-process-crystallisation of bisphenol A/phenol adduct crystallisates.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: August 13, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Berg, Claus Wulff, Georg Malamet, Alfred Eitel, Kurt P. Meurer, Tony van Osselaer, J urgen Hinz
  • Process of regenerating sulfonic acid cation exchange resins with a mercaptoethylamine or thiazolidine
    Patent number: 5455282
    Abstract: The invention relates to repeatedly regeneratable ion exchanger resins with a thin covering of alkyl-SH groups.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: October 3, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Berg, Georg Malamet, Franz Backes, Alfred Eitel, Claus Wulff
  • Optimized ion exchanger beds for the synthesis of bisphenol A
    Patent number: 5395857
    Abstract: The invention relates to a process for increasing (improving) the volume/time yield of fixed-bed reactors in the production of bisphenol A.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: March 7, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Berg, Georg Malamet, Alfred Eitel, Claus Wulff
  • Process for the production of high-purity bisphenol A
    Patent number: 5300700
    Abstract: The invention relates to a special process for the production of high-purity bisphenol A from acetone and phenol in the presence of acidic catalysts.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: April 5, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Georg Malamet, Hans-Peter Wirges, Claus Wulff, Alfred Eitel