Pearson; Richard David

Patent Applications and Registrations

Patent applications and USPTO patent grants for Pearson; Richard David.The latest application filed is for "validating operation of an electronic marker locator".

Company Profile

0.18.19

Pearson; Richard David - Bristol GB
Pearson; Richard David - Franklin Lakes NJ

*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
Electronic marker locator systems and methods Grant 9,194,978 - Pearson , et al. November 24, 2	2015-11-24
Validating Operation of an Electronic Marker Locator App 20150097569 - Longley; Timothy ; et al.	2015-04-09
Locator for locating a current carrying conductor Grant 8,952,677 - Pearson , et al. February 10, 2	2015-02-10
Electronic Marker Locator Systems and Methods App 20140333309 - PEARSON; Richard David ; et al.	2014-11-13
Detector for detecting a current carrying conductor Grant 8,742,747 - Pearson June 3, 2	2014-06-03
Detector for detecting a current carrying conductor Grant 8,676,522 - Pearson March 18, 2	2014-03-18
Detector for calculating the distortion of an electromagnetic field produced by a buried current carrying conductor Grant 8,566,043 - Royle , et al. October 22, 2	2013-10-22
Locator for Locating a Current Carrying Conductor App 20130113456 - Pearson; Richard David ; et al.	2013-05-09
Signal Generator App 20130113529 - Pearson; Richard David ; et al.	2013-05-09
Detector for Detecting a Current Carrying Conductor App 20120143532 - Pearson; Richard David	2012-06-07
Detector for Detecting a Current Carrying Conductor App 20120139525 - Pearson; Richard David	2012-06-07
Detector for calculating a depth of a buried conductor Grant 8,183,851 - Royle , et al. May 22, 2	2012-05-22
Detector for calculating the depth of a buried conductor Grant 8,125,210 - Royle , et al. February 28, 2	2012-02-28
Detector for detecting a current carrying conductor and a method of validating operation of the detector Grant 8,115,489 - Pearson , et al. February 14, 2	2012-02-14
Transmitter of a system for detecting a buried conductor Grant 7,994,770 - Royle , et al. August 9, 2	2011-08-09
Detector for Detecting a Current Carrying Conductor and a Method of Validating Operation of the Detector App 20100060285 - Pearson; Richard David ; et al.	2010-03-11
Detector for Calculating a Depth of a Buried Conductor App 20100001732 - Royle; John Mark ; et al.	2010-01-07
Detector for Calculating the Distortion of an Electromagnetic Field Produced by a Buried Current Carrying Conductor App 20100004880 - Royle; John Mark ; et al.	2010-01-07
Transmitter of a System for Detecting a Buried Conductor App 20100001731 - Royle; John Mark ; et al.	2010-01-07
Method of changing very large tires App 20070063576 - Lockridge; James Francis ; et al.	2007-03-22
Methods and systems for generating phase-derivative sound Grant 7,184,951 - Royle , et al. February 27, 2	2007-02-27
Method of changing very large tires App 20050016663 - Lockridge, James Francis ; et al.	2005-01-27
Signal generator Grant 6,836,231 - Pearson December 28, 2	2004-12-28
System and method for detecting a concealed current carrying conductor Grant 6,777,923 - Pearson August 17, 2	2004-08-17
Signal generator App 20040070444 - Pearson, Richard David	2004-04-15
Signal generator Grant 6,717,392 - Pearson April 6, 2	2004-04-06
Electronic marker locator system and method Grant 6,617,856 - Royle , et al. September 9, 2	2003-09-09
Electronic Marker Locator System And Method App 20030155922 - Royle, John M. ; et al.	2003-08-21
Methods and systems for generating-phase derivative sound App 20030158729 - Royle, John Mark ; et al.	2003-08-21
System and method for detecting a concealed current carrying conductor App 20030155906 - Pearson, Richard David	2003-08-21
Signal generator App 20020014885 - Pearson, Richard David	2002-02-07

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.