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WILLIAMS DAVID J

Overview
  • Total Patents
    17
  • GoodIP Patent Rank
    238,395
  • Filing trend
    ⇩ 100.0%
About

WILLIAMS DAVID J has a total of 17 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 1903. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets macromolecular chemistry and polymers, machines and basic materials chemistry are SHANGHAI DONGDA POLYURETHANE CO LTD, FRICKE MARC and BUTIAN NEW MATERIAL TECH CO LTD.

Patent filings in countries

World map showing WILLIAMS DAVID Js patent filings in countries
# Country Total Patents
#1 United States 14
#2 Canada 2
#3 United Kingdom 1

Patent filings per year

Chart showing WILLIAMS DAVID Js patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Williams David J 16
#2 Gittere Clifford P 4
#3 Van Der Puy Michael 4
#4 Bogdan Mary C 2
#5 Bowman James M 2
#6 Poss Andrew J 2
#7 Leung Louis 1
#8 Karasz Frank E 1
#9 Singh Rajiv R 1
#10 Macknight William J 1

Latest patents

Publication Filing date Title
US2012313035A1 Polyurethane foam premixes containing halogenated olefin blowing agents and foams made from same
US2012220677A1 Polyurethane foam premixes containing halogenated olefin blowing agents and foams made from same
US2012043492A1 Compositions Containing 1-Chloro-3,3,3 Trifluoropropene And 1-Fluoro-1,1 Dichloroethane
US2011039964A1 Foams and foamable compositions containing halogenated olefin blowing agents
US2009305876A1 Compositions and methods containing fluorine substituted olefins
US2009099273A1 Non-silicone surfactants for polyurethane or polyisocyanurate foam containing halogenated olefins as blowing agents
US2009099272A1 Stabilization of polyurethane foam polyol premixes containing halogenated olefin blowing agents
GB9813866D0 Interactive television and readio system
US2628849A Check and script protector
US1490443A Car coupler
US1318940A Mining-drill bit and coupling.
US1158613A Window-shade and operating device therefor.
CA91378A Investments and savings book
US933281A Combined directory and index.
US762855A Investment and savings book.