Liu; Joseph C.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Liu; Joseph C..The latest application filed is for "electric progressive cavity pump".

Company Profile

0.13.3

Liu; Joseph C. - Ramona OK
Liu; Joseph C. - Singapore SG
Liu; Joseph C. - Tulsa OK
Liu; Joseph C. - Bloomington MN
Liu; Joseph C. - Little Rock AR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Electric Progressive Cavity Pump App 20150110643 - Liu; Joseph C. ; et al.	2015-04-23
Electric progressive cavity pump Grant 8,944,783 - Liu , et al. February 3, 2	2015-02-03
System And Method For Protecting Submersible Motor Winding App 20090058221 - Liu; Joseph C.	2009-03-05
Electric Progressive Cavity Pump App 20070295510 - Liu; Joseph C. ; et al.	2007-12-27
Method and apparatus for adaptive feedforward cancellation Grant 6,487,035 - Liu , et al. November 26, 2	2002-11-26
Elongated permanent magnet synchronous motor Grant 6,388,353 - Liu , et al. May 14, 2	2002-05-14
System and method for pumping and heating viscous fluids in a wellbore Grant 6,318,467 - Liu , et al. November 20, 2	2001-11-20
Gimbal micropositioning device Grant 6,069,771 - Boutaghou , et al. May 30, 2	2000-05-30
Capacitance probe for magnetic recording head transducer to disc surface spacing measurement Grant 6,046,596 - Schaenzer , et al. April 4, 2	2000-04-04
Detection and measurement of head disc interference using read back signal (without acoustic emission sensor or laser doppler vibrometer) Grant 6,008,640 - Tan , et al. December 28, 1	1999-12-28
Slider with temperature responsive transducer positioning Grant 5,991,113 - Meyer , et al. November 23, 1	1999-11-23
Using spectral signature analysis in producing substrates for magnetic media Grant 5,247,448 - Liu September 21, 1	1993-09-21
Stator and bearing for submersible pump motor Grant 5,003,210 - Liu , et al. March 26, 1	1991-03-26
Permanent magnet synchronous motor rotor Grant 4,358,696 - Liu , et al. November 9, 1	1982-11-09
Two-pole permanent magnet synchronous motor rotor Grant 4,358,697 - Liu , et al. November 9, 1	1982-11-09

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.