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WALD IND INC

Overview
  • Total Patents
    59
About

WALD IND INC has a total of 59 patent applications. Its first patent ever was published in 1950. It filed its patents most often in United States, United Kingdom and Switzerland. Its main competitors in its focus markets civil engineering, machines and optics are PRISMO UNIVERSAL LTD, DBI HOLDING LLC and WALD IND.

Patent filings in countries

World map showing WALD IND INCs patent filings in countries
# Country Total Patents
#1 United States 46
#2 United Kingdom 6
#3 Switzerland 3
#4 Germany 2
#5 Spain 1
#6 France 1

Patent filings per year

Chart showing WALD IND INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wilson Rufus W 22
#2 Shaffer William R 13
#3 Wald Jr John R 10
#4 Bagshaw Robert B 6
#5 Brown Jr Carl F 4
#6 Wilson Rufus Wyman 3
#7 Rufus W Wilson 3
#8 Miller Frank E 3
#9 Mitchell Wayne R 2
#10 Horn John C 2

Latest patents

Publication Filing date Title
GB1142547A A two-material spray gun
US3412939A Two-color spray gun with ball valve
US3386629A Method and apparatus for controlling and metering the flow of granular material
US3341127A Road striping machine
US3289899A Glass sphere dispenser spreader for highway marking
US3355112A Bead dispenser for use with apparatus for marking road surfaces
US3286928A Hydraulic compensation of highway striping equipment
US3162369A Hydraulic system of spray gun carriage control
US3148833A Road striper
US3083913A Apparatus for marking a surface
US3041999A Coating apparatus having spray path adjusting mechanism
US3168412A Reflectorizing apparatus and method
US3092325A Road striping apparatus
US3049439A Internal mix catalyst type spray gun and process employing same
US3040594A Skip-line attachment with cycle adjuster
US3101175A Road striping machine with electronic sight
US2988285A Road striping machine
US2974875A Road striping machine with optical sight
US2975979A Road striping machine
US2959356A Road striping machine