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GAMMETER JOHN R

Overview
  • Total Patents
    66
About

GAMMETER JOHN R has a total of 66 patent applications. Its first patent ever was published in 1912. It filed its patents most often in United States and Canada. Its main competitors in its focus markets machines, measurement and packaging and shipping are THOMAS ROBERTS FRED, MILLER RUBBER CO and TAKAGI SHIGEMASA.

Patent filings in countries

World map showing GAMMETER JOHN Rs patent filings in countries
# Country Total Patents
#1 United States 53
#2 Canada 13

Patent filings per year

Chart showing GAMMETER JOHN Rs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Gammeter John R 66

Latest patents

Publication Filing date Title
US2771190A Apparatus for testing and sorting thin rubber articles
US2633194A Machine for cutting contoured shapes
US2714451A Apparatus for sorting thin rubber articles
US2649960A Apparatus for testing and sorting thin rubber articles
US2408552A Ball-winding machine
US2371818A Thin article removing apparatus
US2293290A Article conveying and sorting apparatus
US2320516A Apparatus for testing thin rubber articles
US2278652A Article printing device
US2299270A Device for testing thin rubber articles
US2299269A Method and apparatus for making dipped rubber articles
US2225213A Golf ball
US2201691A Method of making golf ball cores
US2221323A Apparatus and method for testing and assorting thin rubber goods
US2146293A Apparatus for making dipped goods
US2139545A Dipped rubber article and method for making the same
US2163784A Method of treating dipped rubber articles
US2142505A Method and apparatus for packaging fluid and semifluid materials
US2166810A Ice cream scoop
US2071299A Joint for roadways