Patents by Inventor Carolus I. M. A. Spee

Carolus I. M. A. Spee 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).

  • Volatile organic barium, strontium and calcium compounds
    Patent number: 5248787
    Abstract: Volatile organic barium, strontium and calcium compounds, which consist of the complex of a barium-, strontium- or calcium-.beta. diketonate and one or more coordinating ligands, characterized in that at least one coordinating ligand of the barium or strontium compound is formed by a neutral oxygen or a neutral nitrogen donor ligand, or one of the coordinating ligands of the calcium compound is formed by a neutral oxygen donor ligand.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: September 28, 1993
    Assignee: Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek - TNO
    Inventors: Klaas Timmer, Carolus I. M. A. Spee, Adrianus Mackor, Harmen A. Meinema