UMPHRIES DON

Overview

About

UMPHRIES DON has a total of 14 patent applications. Its first patent ever was published in 2009. It filed its patents most often in United States, Canada and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets civil engineering are LEE PAUL B, HYDRA SYSTEMS AS and GOSTEV IGOR ALEKSANDROVICH.

Patent filings in countries

#	Country	Total Patents
#1	United States	10
#2	Canada	3
#3	WIPO (World Intellectual Property Organization)	1

#	Industry
#1	Civil engineering

#	Technology
#1	Earth drilling

#	Name	Total Patents
#1	Williger Gabe	14
#2	Umphries Don	14

Publication	Filing date	Title
US2017145765A1	2015-11-25	Redundant drill string cutting system
US2017114622A1	2015-10-23	Total control perforator and system
US2014137723A1	2012-11-19	Bottom hole firing head and method
US2013341007A1	2012-06-23	Wireless downhole tool positioning control
US2011308797A1	2011-07-19	Wireless downhole tool positioning system
US2011061864A1	2009-10-15	Wireless pipe recovery and perforating system