Learn more

PARKER RUST PROOF CO

Overview
  • Total Patents
    228
About

PARKER RUST PROOF CO has a total of 228 patent applications. Its first patent ever was published in 1921. It filed its patents most often in United States, Germany and Canada. Its main competitors in its focus markets surface technology and coating, machines and basic materials chemistry are COLLARDIN GMBH GERHARD, TOMEI DIAMOND CO LTD and TURBINE COMPONENTS CORP.

Patent filings in countries

World map showing PARKER RUST PROOF COs patent filings in countries
# Country Total Patents
#1 United States 136
#2 Germany 28
#3 Canada 26
#4 United Kingdom 24
#5 France 9
#6 Austria 4
#7 Switzerland 1

Patent filings per year

Chart showing PARKER RUST PROOF COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tanner Robert R 27
#2 Gibson Robert C 25
#3 Thompson John S 24
#4 Russell William S 15
#5 Jones Elmer M 10
#6 Darsey Van M 9
#7 Matthew Green 8
#8 Gordon Robert H 7
#9 Goodspeed Edwin W 6
#10 Green Matthew 6

Latest patents

Publication Filing date Title
US3046165A Method of and solution for forming phosphate coatings on zinc surfaces
US3015594A Phosphate coating process
US2970935A Method of rinsing metallic surfaces with solutions containing hexavalent chromium
US2927046A Coated metals and solutions and process for making the same
US2891884A Alkali metal pyrophosphate solutions and methods of forming coatings therewith
US3007817A Cold cleaning and cold phosphate coating process
US2967791A Process of coating aluminum
US2955061A Fluoride coating on zirconium
US2868682A Chromate-fluoride type coating solutions and method of treating metal surfaces therewith
US2809907A Vitreous enameling
US2874081A Pretreatment solution for phosphate coating, method of preparing the same and process of treating metal surfaces
US3034933A Method and means for treating metallic surfaces bearing protective coatings
US2979430A Heat resistant phosphate coatings, methods and articles produced therefrom
US3041215A Solutions and methods for forming protective coatings on titanium
US2859145A Cold rolling of steel
US2884351A Method of cold rolling ferrous strip stock
US2902390A Method of coating metal surface with hexavalent chromium compound and polyacrylic acid
US2835618A Solution and method for producing heat resistant electrical insulation coatings on ferrous surfaces
US2835617A Composition and method for coating metallic surfaces
US2875111A Method of forming phosphate coatings on drawn wire