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HELTZEL ROBERT E

Overview
  • Total Patents
    11
About

HELTZEL ROBERT E has a total of 11 patent applications. Its first patent ever was published in 1949. It filed its patents most often in United States and Canada. Its main competitors in its focus markets machines, packaging and shipping and civil engineering are FOOTE COMPANY INC, JAEGER MACHINE CO and JOSEPH TEMPERLEY.

Patent filings in countries

World map showing HELTZEL ROBERT Es patent filings in countries
# Country Total Patents
#1 United States 8
#2 Canada 3

Patent filings per year

Chart showing HELTZEL ROBERT Es patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Heltzel Robert E 11

Latest patents

Publication Filing date Title
CA1005623A Concrete product method and molding machine for producing same
US3317194A Concrete mixer
US3144700A Road form and incorporated load transfer unit
US3064832A Mobile batching plant
US3034613A Slide lock for concrete road forms
US2754996A Automatic batch dispensing apparatus
US2663466A Operating mechanism for compressible sealing closures for hoppers
US2638254A Compression sealing gate for storage bins and hoppers
US2548214A Dowel attachment and adjusting lock for forms
CA688122A Mobile batching plant
CA625909A Slide lock for concrete road forms