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ROYAL DEV CO

Overview
  • Total Patents
    62
About

ROYAL DEV CO has a total of 62 patent applications. Its first patent ever was published in 1966. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets furniture and games and machines are FRITZ CROSS COMPANY, Xu han-zhong and SYLVIA BANK.

Patent filings in countries

World map showing ROYAL DEV COs patent filings in countries
# Country Total Patents
#1 United States 17
#2 Canada 15
#3 United Kingdom 9
#4 Germany 8
#5 Australia 7
#6 Japan 4
#7 Switzerland 1
#8 France 1

Patent filings per year

Chart showing ROYAL DEV COs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Furniture and games
#2 Machines

Focus technologies

# Technology
#1 Chairs and beds
#2 Unspecified technologies

Top inventors

# Name Total Patents
#1 Rogers Walter C Jr 16
#2 Rogers Jr Walter Clark 7
#3 Hoffman David S 6
#4 Rogers Walter Clark Jr 5
#5 Rogers Jr Walter C 5
#6 Rogers Jun Walter Clark 4
#7 Uorutaa Kuraaku Rojiyaasu Jiyu 4
#8 Snitzer Morton 3
#9 Hoffman David Stephen 3
#10 Rogers Walter Clark 2

Latest patents

Publication Filing date Title
CA1133374A Recliner chair with wall-avoiding action
US4337977A Three-way handle-operated wall-avoiding recliner chair
US4226469A Recliner chair with wall-avoiding action
US4188062A Handle-operated wall-avoiding recliner chair with headrest
US4108491A Wall-avoiding recliner chair
US4071276A Recliner chairs
US4048680A Sofa bed and linkage mechanism
US4025113A Linkage mechanism for handle operated recliner chair
AU497194B2 Rocker recliner chair
US4071275A Recliner chair with wall avoiding action
US3865432A Reclining chair
DE2307127A1 MOVABLE BACKREST CHAIR
CA954031A Rocker recliner chair
US3652125A Reclining chair
US3571827A Folding bed linkage
US3456268A Sofa bed
US3400975A Footrest and associated linkage for chair
US3389409A Sofa bed
US3348878A Skirt lifter for chair with footrest
US3370884A Chair with footrest