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MARSHALL D

Overview
  • Total Patents
    16
About

MARSHALL D has a total of 16 patent applications. Its first patent ever was published in 1971. It filed its patents most often in United Kingdom, United States and Australia. Its main competitors in its focus markets chemical engineering, engines, pumps and turbines and electrical machinery and energy are LENSER VERWALTUNGS GMBH, PRO PURE INC and ZHEJIANG HONG SHENG ENVIRONMENTAL PROTECTION TECH GROUP CO LTD.

Patent filings in countries

World map showing MARSHALL Ds patent filings in countries
# Country Total Patents
#1 United Kingdom 13
#2 United States 2
#3 Australia 1

Patent filings per year

Chart showing MARSHALL Ds patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Marshall D 2
#2 Marshall David 1

Latest patents

Publication Filing date Title
GB8420039D0 Alarm device
GB8311927D0 Vehicle security lock
GB2029256A Fluid filter
GB1544226A Air-filter
GB1546067A Apparatus for drawing off noxious gases and fumes
GB1535788A Element for a fluid filter
GB1535789A Plug-in fluid filter
GB1542263A High temperature resistant fluid filter
GB1537034A Acid gas scrubber
GB1505843A Activated carbon filter
GB1537033A Fume-extraction system
GB1485128A Bonded two-stage high efficiency filter
AU7794675A Coupling grounding rods
US3841380A Adapter for portable power-operated tire removing tool
US3761549A Method for producing laundry products