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LEONARD ELOF R

Overview
  • Total Patents
    17
About

LEONARD ELOF R has a total of 17 patent applications. Its first patent ever was published in 1911. It filed its patents most often in United States. Its main competitors in its focus markets civil engineering and machines are WILSON JAMES GODFREY, GLIDEROL DOORS S PTE LTD and STEELCRAFT MFG COMPANY.

Patent filings in countries

World map showing LEONARD ELOF Rs patent filings in countries
# Country Total Patents
#1 United States 17

Patent filings per year

Chart showing LEONARD ELOF Rs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering
#2 Machines

Top inventors

# Name Total Patents
#1 Leonard Elof R 17

Latest patents

Publication Filing date Title
US1574493A Sheet-metal door
US1436452A Waste chute
US1402874A Fireproof dcor
US1384074A Sash-weight
US1363887A Metal frame for doors and the like
US1339205A Fireproof door
US1339360A Fireproof partition
US1262362A Fusible link.
US1256335A Self-closing window.
US1133384A Skylight.
US1115844A Sash-guide.
US1105147A Sash-guide.
US1083019A Fusible chain-link.
US1099184A Window frame and sashes.
US1038160A Metal window-frame.
US1008041A Sash-governing appliance.
US998620A Fireproof door.