Patents by Inventor Aart J. Van Der Lee

Aart J. Van Der Lee 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 preparation of trialkyl compounds of group 3a metals
    Patent number: 5473090
    Abstract: Process for the preparation of trialkyl compound of a Group 3a metal, in which a Group 3a metal is contacted with an alkyl halide in the presence of an alkali metal to obtain a trialkyl compound of the Group 3a metal and alkali-metal halide.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: December 5, 1995
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Cornellis J. Smit, Aart J. Van Der Lee, Gerbrand J. M. Van Eijden