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FRUIN JOHN L

Overview
  • Total Patents
    15
About

FRUIN JOHN L has a total of 15 patent applications. Its first patent ever was published in 1899. It filed its patents most often in United States. Its main competitors in its focus markets civil engineering, mechanical elements and machines are FALCON WATERFREE TECHNOLOGIES, MCALPINE & CO LTD and HUTTERER & LECHNER KG.

Patent filings in countries

World map showing FRUIN JOHN Ls patent filings in countries
# Country Total Patents
#1 United States 15

Patent filings per year

Chart showing FRUIN JOHN Ls patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering
#2 Mechanical elements
#3 Machines

Top inventors

# Name Total Patents
#1 Fruin John L 15
#2 Walker William J 2
#3 Crotty Joseph J 1

Latest patents

Publication Filing date Title
US1005189A Flushing-tank.
US920126A Flushing-tank.
US897283A Plumbing system.
US927034A Roof-plate and attic foul-air vent.
US927035A Combination waste.
US887322A Fresh-air inlet.
US817110A Combined plumber's fitting and pipe-support.
US860911A Sanitary t.
US810047A Plumbing system.
US849383A Sanitary t.
US809938A Combined fitting for closets and sinks.
US740413A Plumber's sanitary cross.
US740412A Waste and vent system.
US689045A Plumber's fitting.
US675090A Plumbing system and fittings therefor.