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GARDNER AND SONS LTD L

Overview
  • Total Patents
    14
About

GARDNER AND SONS LTD L has a total of 14 patent applications. Its first patent ever was published in 1954. It filed its patents most often in Canada, United Kingdom and Austria. Its main competitors in its focus markets mechanical elements and engines, pumps and turbines are RENNIKS COMPANY, FREUDENBERG SEALING TECH S A S DI EXTERNA ITALIA S R L U and WAGNER JOHN B.

Patent filings in countries

World map showing GARDNER AND SONS LTD Ls patent filings in countries
# Country Total Patents
#1 Canada 10
#2 United Kingdom 2
#3 Austria 1
#4 France 1

Patent filings per year

Chart showing GARDNER AND SONS LTD Ls patent filings per year from 1900 to 2020

Focus technologies

# Technology
#1 Pistons and sealings
#2 Cyclically operating valves
#3 Nails

Top inventors

# Name Total Patents
#1 Gardner Joseph Hugh Stott 9
#2 Gardner John Kynaston 3
#3 Gardner Joseph 3
#4 Gardner Joseph H S 2
#5 Stott Joseph Hugh 1

Latest patents

Publication Filing date Title
GB929852A Improvements relating to valve spring collar locating devices
GB767328A Improvements in pistons of compression ignition engines
CA309506A Inlet valve of internal combustion engines
CA310407A Means for facilitating the starting of internal combustion engines
CA379909A Engine fuel supply varying means
CA349599A Oil engine
CA422215A Oil engine piston
CA308876A Valve operating mechanism for internal combustion engines
CA349600A Oil engine cylinder head
CA701357A Valve spring collar locating devices
CA563498A Pistons of compression ignition engines
CA379419A Engine flexible mounting