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. 21, 2009
Filed:
Jan. 09, 2006
Applicants:
Vladimir Kraz, Santa Cruz, CA (US);
Kirk Alan Martin, Aptos, CA (US);
Inventors:
Vladimir Kraz, Santa Cruz, CA (US);
Kirk Alan Martin, Aptos, CA (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05F 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device and method for ionization control is provided. The device and method controls the ionization balance using a sensor element, a control circuit that produces output signal as a function of an input signal from the sensor and transmits that output signal to the ionizer being controlled. The device also has a mechanism for detecting rapid changes in the input signal and a mechanism for disabling changes in the control signal for the duration of presence of said rapidly-changing signal.