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SMITH CHARLES B

Overview
  • Total Patents
    23
About

SMITH CHARLES B has a total of 23 patent applications. Its first patent ever was published in 1897. It filed its patents most often in United States and Canada. Its main competitors in its focus markets telecommunications, transport and machines are PERINI ELECTRONIC CORP, DUAN CHAO and PALCO TELECOM INC.

Patent filings in countries

World map showing SMITH CHARLES Bs patent filings in countries
# Country Total Patents
#1 United States 20
#2 Canada 3

Patent filings per year

Chart showing SMITH CHARLES Bs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Smith Charles B 23
#2 Miller Linwood L 1

Latest patents

Publication Filing date Title
US3315378A Erasable tracing devices
US2539489A Convertible automobile airplane
US1218961A Planter.
US1154066A Shoe-lace fastener.
US1186614A Mold for fireproof floors.
CA157377A Vehicle pole
US1074476A Horse-detacher.
US966960A Lace-fastener.
US769772A File.
CA77741A Milk pail and stool
US729801A Telephone-exchange system.
US781237A Telephone system.
US779004A Multiple-transfer switchboard.
US727704A Electrical signaling or calling system.
US741285A Telephone system.
US741284A Telephone system.
US727702A Electrical signaling or calling system.
US727703A Electrical signaling or calling system.
US741283A Telephone.
US741282A Telephone system.