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:
Apr. 01, 2003
Filed:
Nov. 22, 2000
Evotec OAI AG., , DE;
Abstract
A process for treating a biological or synthetic object subjected to an electrical field in a surrounding liquid medium for a predetermined pulse time (t ), the electrical field being formed by at least two electrodes including actuating at least once during the pulse time (t ) each of the electrodes as an anode and as a cathode, to cause at each electrode a polarity reversal and alternating electrolytic increases and reductions in pH of at least a portion of the liquid medium, subjecting the object during the pulse time (t ) to a number of electrical partial pulses which have a frequency in the range of 1 kHz to 1 MHz and which possess partial pulse durations, with sequentially reversing polarity or field direction such that the partial pulses possess sequentially varying partial pulse durations (t t ), pulse forms, and/or pulse amplitudes, and selecting the partial pulse durations (t t ), pulse forms, and/or pulse amplitudes such that, due to the electrolytic increases and reductions in pH value, substantially equal H and OH ion concentrations are created.