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LAWRENCE BROTHERS

Overview
  • Total Patents
    108
About

LAWRENCE BROTHERS has a total of 108 patent applications. Its first patent ever was published in 1952. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets civil engineering, machines and electrical machinery and energy are FRANTZ MFG CO, ALLITH PROUTY COMPANY and CALDWELL MFG CO.

Patent filings in countries

World map showing LAWRENCE BROTHERSs patent filings in countries
# Country Total Patents
#1 United States 72
#2 Canada 35
#3 United Kingdom 1

Patent filings per year

Chart showing LAWRENCE BROTHERSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Foltz Robert E 27
#2 Johnson Larry K 18
#3 Newlon Robert L 10
#4 Mcninch Delmar 8
#5 Mcninch Delmar D 7
#6 Johnson Larry 5
#7 Riser Clarence B 5
#8 Foltz R 5
#9 Granzow Kurt H 4
#10 Lawrence Tom M 3

Latest patents

Publication Filing date Title
CA2284336A1 Food preparation aid for single-handed persons
US5713105A Adjustable hinge
GB8333805D0 Barn door framing system
US4538323A Bearing supported truck assembly for sliding door
US4552094A Horse stall construction
US4513554A Barn door framing system
US4513535A Barn door framing system
US4513555A Barn door framing system
CA1115013A Security hinge with sealed switch and operator concealed therein
US4340246A Latch assembly
US4288887A Frame corner connector
US4295514A Bifold door hinge assembly
CA1124637A Bifold door hinge assembly
US4359804A Load supporting hinge structure with concealed angular bearing
US4168409A Security hinge with sealed switch and operator concealed therein
US4216986A Releasable door stop assembly
US4193245A Door frame construction
US4339845A Spring hinge
CA1055546A Emergency release door stop assembly for a bidirectional swinging door
US4116514A Security hinge