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PARMATIC ENGINEERING LTD

Overview
  • Total Patents
    25
About

PARMATIC ENGINEERING LTD has a total of 25 patent applications. Its first patent ever was published in 1957. It filed its patents most often in United Kingdom, Canada and Belgium. Its main competitors in its focus markets chemical engineering and electrical machinery and energy are WAKO IND CO LTD, JIANGSU GUOQIANG ENV PROTECTED GROUP CO LTD and WATER MAIDEN LTD.

Patent filings in countries

World map showing PARMATIC ENGINEERING LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 7
#2 Canada 6
#3 Belgium 3
#4 Germany 3
#5 France 3
#6 United States 3

Patent filings per year

Chart showing PARMATIC ENGINEERING LTDs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Gutkowski Janusz 10
#2 Janusz Gutkowski 3
#3 Charnock John A 2
#4 Hammer Kurt Finn 2
#5 Florescu Nicolas 2
#6 Parkinson John 2
#7 Hammer Kurt F 1
#8 John Parkinson 1
#9 Eibich Alfred 1
#10 Charnock John Anthony 1

Latest patents

Publication Filing date Title
GB1094306A Improvements in or relating to fluid filters
DE1170904B Rotary valve for the simultaneous closing of the inlet and outlet openings for oil filters
GB856184A Fluid filter construction
GB847738A Improvements relating to filters
US2955712A High pressure oil filter unit having threaded bowl assembly valve actuating means
GB843990A High pressure oil filter unit having threaded bowl assembly valve actuating means
GB841603A Oil filter unit
GB843237A An improved high pressure fluid filter
US2890305A Hermetically sealed pressure sensitive switch having exteriorly suspended actuating means
US2978107A High pressure oil filter unit having combined automatic shut-off and relief valve structure
CA616962A Filter element
CA666111A Fluid filter construction
CA605522A High pressure oil filter unit having combined automatic shut-off and relief valve structure
CA622865A High pressure oil filter unit having threaded bowl assembly valve actuating means
CA617312A Oil filter unit
CA612370A Hermetically sealed pressure sensitive switch having exteriorly suspended actuating means