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RINGGENBERG PAUL D

Overview
  • Total Patents
    12
About

RINGGENBERG PAUL D has a total of 12 patent applications. Its first patent ever was published in 1992. It filed its patents most often in United States and Canada. Its main competitors in its focus markets optics, machines and civil engineering are YANG GUO, WELLDYNAMICS BV and STONE AEROSPACE INC.

Patent filings in countries

World map showing RINGGENBERG PAUL Ds patent filings in countries
# Country Total Patents
#1 United States 11
#2 Canada 1

Patent filings per year

Chart showing RINGGENBERG PAUL Ds patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Ringgenberg Paul D 12
#2 Skinner Neal G 6
#3 Johnson David O 6
#4 Maida Jr John L 6
#5 Huggins Cory L 1
#6 Gilbert Gregory N 1
#7 Martin Adam H 1
#8 Perkins Donald 1
#9 Beck Harold K 1

Latest patents

Publication Filing date Title
US2013081806A1 Debris resistant internal tubular testing system
US2012312529A1 Reducing trips in well operations
US2012090854A1 Pressure bearing wall and support structure therefor
US5335731A Formation testing apparatus and method