Learn more

WHITEHEAD BROS CO

Overview
  • Total Patents
    47
About

WHITEHEAD BROS CO has a total of 47 patent applications. Its first patent ever was published in 1924. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets materials and metallurgy, machines and macromolecular chemistry and polymers are PROIZV OB T AVTOMOBILNOJ PROMY, OSAKA SHELL KOGYOSHO KK and SUZHOU SUZHU FOUNDRY MACHINERY MANUFACTURE CO LTD.

Patent filings in countries

World map showing WHITEHEAD BROS COs patent filings in countries

Patent filings per year

Chart showing WHITEHEAD BROS COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wallace Burgess P 19
#2 Melcher Ronald E 10
#3 Hanley Henry B 3
#4 Melcher R E 3
#5 Schaefer Frederick W 3
#6 Dyke Romney Van 2
#7 Melcher Ronald Ernest 2
#8 Maddison Robert J 2
#9 Loertscher Jr John F 2
#10 Schaefer Frederick William 1

Latest patents

Publication Filing date Title
CA1122355A Additive for green molding sand
US4131476A Additive for green molding sand
US3816145A Trihydroxydiphenyl as an additive for foundry green molding sands
US3692550A Facing agents for molding sand
CA917856A Resorcinol residue-containing compositions
ES289497A1 Procedure for the obtaining of green molding sand (Machine-translation by Google Translate, not legally binding)
GB984720A Improvements in or relating to green molding sand compositions and additives therefor
US3140887A Method and apparatus for applying traction sand to locomotive driving wheels
US3095310A Methyl cellulose additive for green molding sand
US3086875A Cellulosic additive materials for green sand molding
US3086874A Green molding sand additive
US3082111A Corrective backfill composition
US2863781A Binders for foundry molds and cores
US2714077A Coated non-irritating coal tar pitch
US2686727A Additive composition for sand molds and method of making same
US2686728A Binders for baked sand cores and dry sand molds for use in casting metals
US2730514A Shell mold and composition for making same
US2586585A Synthetic mold composition
US2558402A Mold composition
US2469908A Synthetic mold composition and method of making same