The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 2002
Filed:
Aug. 15, 2000
Applicant:
Inventors:
Wolfgang Sievert, Wunstorf, DE;
Joachim Leifels, Gehrden, DE;
Assignee:
AlliedSignal Inc., Morristown, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 1/00 ; C07F 3/00 ;
U.S. Cl.
CPC ...
C07C 1/00 ; C07F 3/00 ;
Abstract
Process for reducing the metal ion content in a chemical compound having a dipole moment or a mixture of two or more thereof to 1 ppb or less by distillation with supply of the energy required for vaporizing the chemical compound or the mixture of two or more thereof in the form of electromagnetic waves having a frequency in the range from 1 MHz to 50 Ghz.