Patents by Inventor Chee Jian CHAN

Chee Jian CHAN 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 MANUFACTURING ALKANESULFONIC ACIDS
    Publication number: 20220340518
    Abstract: The present invention relates to an improved process for manufacturing of alkanesulfonic acids.
    Type: Application
    Filed: September 22, 2020
    Publication date: October 27, 2022
    Inventors: Frank PIEPENBREIER, Andreas KEMPTER, Chee Jian CHAN, Rosario MAZARRO BERDONCES, Kerstin SCHIERLE-ARNDT, Bjoern KAIBEL, Jan SPIELMANN, Frieder BORGMEIER, Michael ZEILINGER, Ingo BIERTUEMPEL, Timo OTT
  • RECOVERY OF WATER-FREE METHANESULFONIC ACID FROM THE BOTTOM STREAM OF A DISTILLATION COLUMN
    Publication number: 20220274919
    Abstract: Process for separating anhydrous methanesulfonic acid from a reaction mixture comprising methanesulfonic acid and sulfuric acid by distillation with at least three functional steps and the use of said methanesulfonic acid.
    Type: Application
    Filed: July 28, 2020
    Publication date: September 1, 2022
    Inventors: Marina-Eleni STAVROU, Marcus BECHTEL, Rosario MAZARRO BERDONCES, Frank PIEPENBREIER, Chee Jian CHAN, Bjoern KAIBEL, Andreas KEMPTER