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WADDINGTON & DUVAL LTD

Overview
  • Total Patents
    121
About

WADDINGTON & DUVAL LTD has a total of 121 patent applications. Its first patent ever was published in 1958. It filed its patents most often in United Kingdom, United States and Australia. Its main competitors in its focus markets packaging and shipping, machines and mechanical elements are VITOP, SCEPTER CORP and RICE FRANK E.

Patent filings per year

Chart showing WADDINGTON & DUVAL LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lucking Anthony James 29
#2 Lane Charles Anthony 17
#3 Tyrrell Derek Lionel 14
#4 Woodward Ian David 9
#5 Lane Charles A 9
#6 Duval Bruce 9
#7 Woodward Ian 9
#8 Haines Kenneth Reginald 8
#9 Blackbourn Geoffrey 8
#10 Symonds Roy 6

Latest patents

Publication Filing date Title
GB0006744D0 Flat spiral flow control apparatus
GB9801006D0 Air returning press tap
GB9201993D0 Improvements in and relating to dispensing taps
GB9013728D0 Improvements in and relating to dispensing taps
GB8630743D0 Taps for pressurised bottles & casks
GB8610616D0 Improvements in and relating to a method of preparing a dispenser for carbonated beverages
GB8512070D0 Beer container
GB8431695D0 Carbonated beverage container
GB8304244D0 Tap
ES8400573A3 All plastic diaphragm valve
GB2101275A Tap for drinks container
US4452425A Plastic diaphragm tap
ZA8202165B Press taps
US4471807A Press taps
NZ200030A Dispensing valve breaks seal on first depression
ZA8003981B Plastic diaphragm tap
NZ187039A Moulded plastics tap relative permeability of parts
AU3531578A Wine cask plastic tap
AU1181876A Retractable spout for containers
NZ179269A Tap with domed resilient diaphragm depressable to open tap