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KIRSTEIN SONS COMPANY E

Overview
  • Total Patents
    24
About

KIRSTEIN SONS COMPANY E has a total of 24 patent applications. Its first patent ever was published in 1900. It filed its patents most often in United States. Its main competitors in its focus markets optics, consumer goods and machine tools are FORTUNA URBIS SRL, IC BERLIN BRILLEN GMBH and MICROVISION OPTICAL LLC.

Patent filings in countries

World map showing KIRSTEIN SONS COMPANY Es patent filings in countries
# Country Total Patents
#1 United States 24

Patent filings per year

Chart showing KIRSTEIN SONS COMPANY Es patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Consumer goods
#3 Machine tools
#4 Machines

Top inventors

# Name Total Patents
#1 Mcdonell William E 7
#2 Bader Gustav A 6
#3 Kirstein Henry E 3
#4 Hoffman William W 2
#5 Becker Louis B 1
#6 Rapp Theodore 1
#7 Day George H 1
#8 Nelson John N 1
#9 Goodwin Harry C 1
#10 Threehouse Mortimer A 1

Latest patents

Publication Filing date Title
US1424828A Ophthalmic mounting
US1371385A Ophthalmic mounting
US1362715A Ophthalmic-lens frame
US1348155A Ophthalmic mounting
US1264411A Opthalmic mounting.
US1264410A Opthalmic mounting.
US1263593A Opthalmic mounting.
US1261942A Eyeglasses.
US1253255A Eyeglasses.
US1225343A Temple for spectacles and method of making same.
US1058748A Eyeglasses.
US1057051A Eyeglasses.
US998626A Eyeglasses.
US886467A Spring-bridge.
US957374A Eyeglass-mounting.
US885829A Eyeglasses.
US873339A Nose-guard for eyeglasses.
US862432A Eyeglasses.
US806379A Eyeglass-mounting.
US800893A Eyeglasses.