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:
Jul. 29, 2008
Filed:
May. 23, 2006
Applicants:
Kudumboor V. Rao, Stockholm, SE;
Valter Ström, Stockholm, SE;
Ziyan Gu, Kista, SE;
Seetharama C. Deevi, Midlothian, VA (US);
Inventors:
Kudumboor V. Rao, Stockholm, SE;
Valter Ström, Stockholm, SE;
Ziyan Gu, Kista, SE;
Seetharama C. Deevi, Midlothian, VA (US);
Assignee:
Philip Morris USA Inc., Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/76 (2006.01); G01R 33/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A local magnetic susceptibility unit is adapted to measure the AC magnetic susceptibility of a surface region of a sample. The unit comprises a sensing element and one or more balancing elements arranged in a circuit. When a sample is placed proximate to the sensing element the sample induces an imbalance voltage in the circuit.