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MARSHALLTOWN TROWEL CO

Overview
  • Total Patents
    54
About

MARSHALLTOWN TROWEL CO has a total of 54 patent applications. Its first patent ever was published in 1927. It filed its patents most often in Australia, United Kingdom and United States. Its main competitors in its focus markets civil engineering, machine tools and machines are SOC D EXPL DES ETS RACODON SA, AXIA ACQUISITION CORP and CHEN SHOU HUNG.

Patent filings in countries

World map showing MARSHALLTOWN TROWEL COs patent filings in countries
# Country Total Patents
#1 Australia 16
#2 United Kingdom 14
#3 United States 12
#4 Canada 10
#5 WIPO (World Intellectual Property Organization) 2

Patent filings per year

Chart showing MARSHALLTOWN TROWEL COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kelsay Curtis Dwight 20
#2 Murders Jack D 16
#3 Mccomber Larry J 11
#4 Woltjen Duane Walker 8
#5 Ness Alan Jerome 8
#6 Williams Kent Douglas 7
#7 Pyatt Georgia 6
#8 Kelsay Curtis D 6
#9 Woltjen Duane W 5
#10 Ness Alan J 2

Latest patents

Publication Filing date Title
AU3132800A Plastic molded float handle
AU6547499A Taping knife handle
AU1823200A Plastic mason's trowel
AU2909499A Finishing trowel handle
CA2262037A1 Trowel having a stripe of hard chrome wear-prevent layer
US6105882A Texture material applicator
US6138318A Zinc die cast concrete implement
AU7842698A A plastic molded trowel handle having fingerguard and palm grip
US6032320A Trowel having imposed blade stresses and method of manufacture
US5737795A Stiffened bull float apparatus
AU1003997A A plastic molded trowel handle having fingerguard and palm grip
GB9929657D0 Plastic molded float handle
CA2167786A1 Trowel having imposed blade stresses and method of manufacture
US5781956A Plastic molded float handle
GB9724188D0 Finishing trowel handle
US5615445A Taping knife handle
US5522111A Finishing trowel handle
US5327612A Plastic molded trowel handle having fingerguard and palm grip
GB8706545D0 Concrete finishing float
US1786043A Handle for trowels