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. 24, 2018
Filed:
Jun. 01, 2016
Applicant:
Hewlett-packard Development Company, L.p., Houston, TX (US);
Inventors:
Eric T. Martin, Corvallis, OR (US);
Andrew L. Van Brocklin, Corvallis, OR (US);
David Maxfield, Philomath, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01); B41J 2/14 (2006.01); G01R 27/02 (2006.01);
U.S. Cl.
CPC ...
B41J 2/04541 (2013.01); B41J 2/0451 (2013.01); B41J 2/0458 (2013.01); B41J 2/14153 (2013.01); G01R 27/02 (2013.01); B41J 2002/14354 (2013.01);
Abstract
Measuring an inkjet nozzle may include taking at least one impedance measurement after the firing command is sent to detect the presence of a drive bubble and taking another impedance measurement to detect a collapse of the drive bubble.