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LAMPHERE JEAN K

Overview
  • Total Patents
    14
About

LAMPHERE JEAN K has a total of 14 patent applications. Its first patent ever was published in 1960. It filed its patents most often in United States. Its main competitors in its focus markets civil engineering, machines and environmental technology are JONES EDWARD N, ABEGG & REINHOLD CO and GLOBE OIL TOOLS CO.

Patent filings in countries

World map showing LAMPHERE JEAN Ks patent filings in countries
# Country Total Patents
#1 United States 14

Patent filings per year

Chart showing LAMPHERE JEAN Ks patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kammerer Archer W 9
#2 Kammerer Jr Archer W 4
#3 Kammerer Archer W Jr 1

Latest patents

Publication Filing date Title
US3489211A Method and apparatus for parting subsurface well casing from floating drilling vessels
US3515889A Power generation apparatus
US3406769A Reverse circulation rotary expansible drill bits
US3414069A Apparatus for recovering formation wall samples from a bore hole
US3339647A Hydraulically expansible drill bits
US3351134A Casing severing tool with centering pads and tapered cutters
US3196961A Fluid pressure expansible rotary drill bits
US3196960A Fluid pressure expansible drill bits
US3169592A Retrievable drill bit
US3158206A Hydraulic weight control and compensating apparatus
US3151686A Hydraulic weight control and compensating apparatus
US3158208A Safety weight control and compensating apparatus for subsurface well bore devices
US3196959A Directional drilling apparatus
US3116800A Apparatus for conditioning well bores