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LEGGETT AND PLATT SPRING BED A

Overview
  • Total Patents
    14
About

LEGGETT AND PLATT SPRING BED A has a total of 14 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United States. Its main competitors in its focus markets machine tools, furniture and games and machines are OWEN AUTOMATIC SPRING MACHINER, NACHMAN SPRINGFILLED CORP and SMITH GARY B.

Patent filings in countries

World map showing LEGGETT AND PLATT SPRING BED As patent filings in countries
# Country Total Patents
#1 United States 14

Patent filings per year

Chart showing LEGGETT AND PLATT SPRING BED As patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Carl Kirchner 9
#2 Brown William S 2
#3 Kirchner Carl O 1
#4 Harold Hickman 1
#5 Coiner Lloyd O 1

Latest patents

Publication Filing date Title
US2333797A Method and apparatus for making spiral springs
US2238156A Spring structure for mattresses
US2214135A Spring structure for use in bed mattresses, pillows, and cushions
US2176262A Method and apparatus in making spring structures
US2060675A Means for supporting bedsprings
US1957395A Bar bending machine
US1907324A Spring bed bottom
US1861735A Bed bottom hanger mechanism
US1860582A Hook and knot forming machine
US1881672A Method of making spring structures
US1907323A Method and apparatus for making spring structures
US1841784A Bar bending machine
US1854516A Angle bar shearing and punching mechanism
US1841820A Method of sheet metal stamping