H W JOHNSMANVILLE COMPANY

Overview

Total Patents

15

About

H W JOHNSMANVILLE COMPANY has a total of 15 patent applications. Its first patent ever was published in 1905. It filed its patents most often in United States. Its main competitors in its focus markets machines, civil engineering and mechanical elements are NASSAU PRODUCTS, EPICOR IND INC and KLASING CAR BRAKE COMPANY.

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Patent filings in countries

World map showing H W JOHNSMANVILLE COMPANYs patent filings in countries

#	Country	Total Patents
#1	United States	15

Patent filings per year

Chart showing H W JOHNSMANVILLE COMPANYs patent filings per year from 1900 to 2020

Similar Companies

NASSAU PRODUCTS 86% similarity

EPICOR IND INC 86% similarity

KLASING CAR BRAKE COMPANY 86% similarity

YOKOHAMA HYDEX CO 85% similarity

QUICKFLANGE AS 85% similarity

BACHOFEN AG 85% similarity

NORTHERN MALLEABLE IRON COMPAN 85% similarity

WITTEK INC 85% similarity

MAG CO LTD 85% similarity

TIGERHOLM AB 85% similarity

Focus industries

#	Industry
#1	Machines
#2	Civil engineering
#3	Mechanical elements
#4	Transport
#5	Computer technology
#6	Macromolecular chemistry and polymers
#7	Textiles and paper

Focus technologies

#	Technology
#1	Unspecified technologies
#2	Railway brakes
#3	Pipes
#4	General building constructions
#5	Shaping of plastics
#6	Counting mechanisms
#7	Compounding ingredients
#8	Unspecified technologies
#9	Making paper goods
#10	Roof coverings

Top inventors

#	Name	Total Patents
#1	Christenson George	4
#2	Clarence Carson	2
#3	Sabine Wallace C	2
#4	Manville Charles R	1
#5	Jewett Franc Jones	1
#6	Headson Frank A	1
#7	Farrand Albert C	1
#8	Medway Fred John	1
#9	Rowell Frank F	1
#10	Sabine Wallace Clement	1

Latest patents

Publication	Filing date	Title
US1397033A	1920-08-06	Roofing-clamp
US1344288A	1919-08-09	Register-reset
US1284933A	1915-12-11	Sound-absorbing block or tile.
US1205938A	1915-11-29	Sound-absorbing wall or ceiling.
US1205939A	1915-11-29	Sound-absorbing wall or ceiling.
US1184472A	1915-10-18	Sectional conduit.
US1184683A	1915-08-02	Slack take-up for fluid-pressure brake systems.
US1184681A	1915-08-02	Slack take-up for fluid-pressure brake systems.
US1184682A	1915-08-02	Slack take-up for fluid-pressure brake systems.
US1184680A	1914-08-11	Piston-rod swab and gland-lock.
US1146616A	1914-03-11	Safety device for electric signaling apparatus.
US1218679A	1914-01-08	Heat-insulating covering.
US1264924A	1913-05-12	Brake-band, brake-shoe, and lining threfor.
US1182710A	1913-01-20	Fluid-tight joint.
US792901A	1905-02-01	Gasket.