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. 04, 2009
Filed:
Jun. 01, 2006
Applicant:
William David Holland, Palo Alto, CA (US);
Inventor:
William David Holland, Palo Alto, CA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for monitoring marking liquid including a carrier liquid having solid particles therein. A transmitter emits an ultrasonic signal into the marking liquid. The ultrasonic signal is received by a receiver and processed by a controller to determine at least one of the temperature of the marking liquid and the concentration of solid particles in the marking liquid.