Patents by Inventor Dick B. Janssen

Dick B. Janssen 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).

  • Method of producing an optically enriched tertiary alcohol from an epoxide using halohydrin dehalogenase
    Patent number: 8198069
    Abstract: A process for the production of an optically enriched tertiary alcohol of the formula (2a) or (2b), by reacting an epoxide of the formula (1) with a nucleophilic agent Nu in the presence of halohydrin dehalogenase.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: June 12, 2012
    Assignee: BASF SE
    Inventors: Bernhard Hauer, Dick B. Janssen, Maja Majeric-Elenkov
  • Method of production of optically active halohydrocarbons and alcohols using hydrolytic dehalogenation catalysed by haloalkane dehalogenases
    Patent number: 7632666
    Abstract: A method of production of optically active compounds, particularly halohydrocarbons, haloalcohols, alcohols, halopolyols and polyols using hydrolytic dehalogenation of racemic or prochiral halegenhydrocarbons by dehalohenation catalysed by haloalkane dehalogenases (the enzyme code number EC 3.8.1.5) where at least one wild type or modified haloalkane dehalogenase is applied to at least one racemic or prochiral chlorinated, brominated or iodinated compound at the temperature ranged between +10 and +70° C. and pH value between 4.0 and 12.0, in aqueous system or in a monophasic organic solution or in a monophasic organic/aqueous solution or in organic/aqueous biphasic systems.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: December 15, 2009
    Assignee: Masarykova Univerzita V Brne
    Inventors: Zbynek Prokop, Jiri Damborsky, Dick B. Janssen, Yuji Nagata
  • Method of Production of Optically Active Halohydrocarbons and Alcohols Using Hydrolytic Dehalogenation Catalysed by Haloalkanedehalogenases
    Publication number: 20090155868
    Abstract: A method of production of optically active compounds, particularly halohydrocarbons, haloalcohols, alcohols, halopolyols and polyols using hydrolytic dehalogenation of racemic or prochiral halegenhydrocarbons by dehalohenation catalysed by haloalkane dehalogenases (EC 3.8.1.5) where at least one wild type or modified haloalkane dehalogenase is affected by at least one racemic or prochiral chlorinated, brominated or iodinated compound at the temperature ranged between +10 and +70° C. and pH value between 4.0 and 12.0, in aqueous system or in a monophasic organic solution or in a monophasic organic/aqueous solution or in organic/aqueous biphasic systems.
    Type: Application
    Filed: December 23, 2005
    Publication date: June 18, 2009
    Applicant: MASARYKOVA UNIVERZITA V BRNE
    Inventors: Zbynek Prokop, Jiri Damborsky, Dick B. Janssen, Yuji Nagata
  • Process For the Production of an Optically Enriched Tertiary Alcohol
    Publication number: 20080299626
    Abstract: A process for the production of an optically enriched tertiary alcohol of the formula (2a) or (2b), by reacting an epoxide of the formula (1) with a nucleophilic agent Nu in the presence of halohydrin dehalogenase.
    Type: Application
    Filed: December 13, 2006
    Publication date: December 4, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Bernhard Hauer, Dick B. Janssen, Maja Majeric Elenkov