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CHARLES F GARDNER

Overview
  • Total Patents
    15
About

CHARLES F GARDNER has a total of 15 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United States and Canada. Its main competitors in its focus markets engines, pumps and turbines, civil engineering and transport are DEIGHTON S PATENT FLUE AND TUB, KE SHIH YUAN and Fujian qiaolong emergency equipment co ltd.

Patent filings in countries

World map showing CHARLES F GARDNERs patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 6

Patent filings per year

Chart showing CHARLES F GARDNERs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Cartwright Ernest O 13
#2 Williams Harry W 1
#3 Cartright Ernest O 1

Latest patents

Publication Filing date Title
US1567825A Dispensing apparatus
US1369398A Elector or injector
US1383599A Water-elevating apparatus
US1332244A Tank for portable pumping apparatus and the like
US1388511A Portable pumping apparatus
US1331900A Portable pumping apparatus
US1388510A Street and sewer cleaning apparatus
US1341010A Injector or ejector
US1331239A Portable pumping apparatus
CA198378A Water elevating apparatus
CA201944A Street and sewer cleaning apparatus
CA198377A Portable pumping apparatus
CA198376A Portable pumping apparatus
CA198613A Injector or ejector
CA198612A Ejector or injector