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ROBERT STEWART

Overview
  • Total Patents
    18
About

ROBERT STEWART has a total of 18 patent applications. Its first patent ever was published in 1899. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets furniture and games, agriculture and basic materials chemistry are BOBRICK ARTHUR L, RENTOKIL INITIAL UK LTD and STEINER CO INT SA.

Patent filings in countries

World map showing ROBERT STEWARTs patent filings in countries
# Country Total Patents
#1 United States 10
#2 United Kingdom 6
#3 Canada 2

Patent filings per year

Chart showing ROBERT STEWARTs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Robert Stewart 6
#2 Kronenberger Ferdinand 2
#3 Berger Walter 2
#4 Spencer Victor E 1
#5 Kronenberger Annie K 1
#6 Gammeter William F 1

Latest patents

Publication Filing date Title
GB634283A An improved trap for rats and like vermin
GB551561A Improvements in or relating to blocks for building
US1873503A Wash rag
GB376079A Improvements in and relating to combination sponge and wash cloth
US1960600A Method of soil fertilization
US1820256A Combination sponge and wash rag
GB277634A Improvements in or relating to metallic filaments for electric incandescent lamps
US1646324A Liquid dispenser and applicator
US1619770A Dispensing container
GB217988A Improved manufacture of barium peroxide
US1597551A Combined animal trap and feeding trough
GB189178A Improvements in and relating to animal traps
US1056556A Cash-register.
US1014653A Combination-garment.
US920346A Race-course.
US664940A Acetylene-gas generator.
CA309125A Production of metallic filaments for electric incandescent lamps
CA298963A Metallic filament for electric incandescent lamps