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WAINWRIGHT HARRY SMITH

Overview
  • Total Patents
    16
About

WAINWRIGHT HARRY SMITH has a total of 16 patent applications. Its first patent ever was published in 1901. It filed its patents most often in United Kingdom, United States and France. Its main competitors in its focus markets environmental technology are ZHEJIANG TIANDI ENVIRONMENTAL PROT ENGINEERING CO LTD, GUY CARPENTER and ANTON ROTHSTEIN.

Patent filings in countries

World map showing WAINWRIGHT HARRY SMITHs patent filings in countries
# Country Total Patents
#1 United Kingdom 8
#2 United States 7
#3 France 1

Patent filings per year

Chart showing WAINWRIGHT HARRY SMITHs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Environmental technology

Focus technologies

# Technology
#1 Combustion residues removal

Top inventors

# Name Total Patents
#1 Wainwright Harry Smith 15
#2 Smith Wainwright Harry 1

Latest patents

Publication Filing date Title
GB191210631A Improved Method of and Means for Modulating and Mellowing and for otherwise Improving the Tone of Phonographs, Gramophones and the like.
GB190322276A Improved Draught Producing and Spark Arresting Apparatus for Locomotive Engines.
GB190320665A Improved Draught Producing and Spark Arresting Apparatus for Locomotive Engines.
US737800A Spark-arrester.
US737801A Spark-arrester.
US737802A Spark-arrester.
US737803A Spark-arrester.
US737799A Spark-arrester.
US737798A Blast-pipe for locomotives.
GB190202710A Improvements in and pertaining to Locomotive Engine Spark Arresting Appliances and Arrangements.
GB190200583A Improvements in and pertaining to Locomotive Engine Spark Arresting Appliances and Arrangements.
GB190200584A Improvements in and pertaining to Locomotive Engine Spark Arresting Appliances and Arrangements
US737797A Spark-arrester.
GB190121554A Improvements in and relating to Blast Pipes for Locomotives.
GB190114262A Improvements in Locomotives.