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UNDERWOOD TYPEWRITER CO

Overview
  • Total Patents
    1,973
About

UNDERWOOD TYPEWRITER CO has a total of 1,973 patent applications. Its first patent ever was published in 1900. It filed its patents most often in United States, France and United Kingdom. Its main competitors in its focus markets textiles and paper, machines and electrical machinery and energy are BERRY NORMAN MICHEAL, L C SMITH & BROS TYPEWRITER COMPANY and TAKAGI YUKI.

Patent filings in countries

World map showing UNDERWOOD TYPEWRITER COs patent filings in countries
# Country Total Patents
#1 United States 1,619
#2 France 98
#3 United Kingdom 85
#4 Germany 74
#5 Canada 54
#6 Austria 22
#7 Switzerland 10
#8 Spain 10
#9 Australia 1

Patent filings per year

Chart showing UNDERWOOD TYPEWRITER COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kurowski Alfred G F 180
#2 Smith Jesse A B 147
#3 John Waldheim 102
#4 Stickney Burnham C 97
#5 Mclaughlin John C 65
#6 Helmond William F 59
#7 Corcoran Cornelius B 47
#8 Roberts Lyman R 39
#9 Mccormack Harry S 26
#10 Kunath Edward F 26

Latest patents

Publication Filing date Title
GB275506A Improvements in back-spacing mechanism for typewriting machines
GB275860A Improvements relating to sound deadening casings for typewriting machines
US1646394A Typewriting machine
GB274694A Improvements relating to web-feeding arrangements for typewriting machines
GB273150A Improvements in billing attachments for typewriting machines
US1614604A Typewriting machine
US1619602A Silencing device for typewriters
GB257525A Improvements in ink ribbon mechanism for typewriting machines
GB259130A Improvements in typewriting machines
US1609435A Typewriting machine
GB258207A Improved paper-feeding mechanism for typewriting machines
GB272285A Improvements in line-spacing mechanism for typewriting machines
GB260202A Improvements in back-spacing mechanism for typewriting machines
GB262996A Improvements in carriage-feeding mechanism for typewriting machines
GB256494A Improvements in typewriting machines
GB254219A Improvements in base boards for typewriting machines
US1646966A Typewriting machine
US1604636A Typewriting machine
US1604635A Typewriting machine
US1638461A Stenciling machine