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PLASTIC APPLICATORS

Overview
  • Total Patents
    15
About

PLASTIC APPLICATORS has a total of 15 patent applications. Its first patent ever was published in 1959. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets measurement, civil engineering and machines are DELPHIAN CORP, WEATHERFORD SWITZERLAND TRADING AND DEV GMBH and BIOTA GUARD AS.

Patent filings in countries

World map showing PLASTIC APPLICATORSs patent filings in countries
# Country Total Patents
#1 United States 11
#2 Canada 3
#3 United Kingdom 1

Patent filings per year

Chart showing PLASTIC APPLICATORSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tompkins David R 5
#2 Council Lemuel L 3
#3 Mcclughan Thomas R 2
#4 Kahil John E 2
#5 Calhoun Charles P 1
#6 Tompkins D 1
#7 Walling Walter W 1
#8 Gifford Bruce M 1
#9 Derwin King James 1
#10 O'Rourke Fred C 1

Latest patents

Publication Filing date Title
CA994008A Apparatus for inspecting tubular goods
CA991320A Apparatus for inspecting tubular goods
CA977468A Apparatus for inspecting tubular goods
US3855465A Apparatus for inspecting tubular goods
US3339945A Fused tubular member and coupling arrangement
US3331969A Circuit for reproduction of a plurality of similar low-level d.c. signals
US3250404A Loading and ejecting mechanism
US3287632A Mobile inspection device for testing metallic members for longitudinal and transverse discontinuities
US3299349A Magnetic pipe inspection device with pivotally mounted sensor means
US3299350A Rotating pipe inspection assembly with solenoid operated means to raise and lower the sensor means
US3277420A Hydraulically operated clamping mechanism
US3255381A Protective circuitry for surge generators
US3087513A Retainer assembly for securing a covering on a tubular member
US3063760A Drill stem protector