KELLER WILLIAM H

Overview

Total Patents

11

About

KELLER WILLIAM H has a total of 11 patent applications. Its first patent ever was published in 1902. It filed its patents most often in United States. Its main competitors in its focus markets machine tools, mechanical elements and machines are MASTAVALVE PTY LTD, TWINFOLD NOMINEES and KETTERING CHARLES F.

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Patent filings in countries

World map showing KELLER WILLIAM Hs patent filings in countries

#	Country	Total Patents
#1	United States	11

Patent filings per year

Chart showing KELLER WILLIAM Hs patent filings per year from 1900 to 2020

Similar Companies

MASTAVALVE PTY LTD 90% similarity

TWINFOLD NOMINEES 90% similarity

KETTERING CHARLES F 90% similarity

STRNAD FERDINAND 90% similarity

SCARAMUCCI JOHN P 90% similarity

CHORKEY WILLIAM J 90% similarity

KEROTEST MFG COMPANY 90% similarity

LEMP HERMANN 90% similarity

DRANE PHILLIPS B 90% similarity

STEPHEN C PEPLIN 89% similarity

Focus industries

#	Industry
#1	Machine tools
#2	Mechanical elements
#3	Machines
#4	Furniture and games
#5	Electrical machinery and energy
#6	Chemical engineering
#7	Engines, pumps and turbines

Focus technologies

#	Technology
#1	Venting or aerating devices
#2	Percussive tools
#3	Unspecified technologies
#4	Domestic washing
#5	Separation
#6	Resistors
#7	Non-positive-displacement pumps

Top inventors

#	Name	Total Patents
#1	Keller William H	11

Latest patents

Publication	Filing date	Title
US1493550A	1918-07-17	Pneumatic tool
US1420318A	1918-07-08	Pneumatic tool
US1240457A	1915-06-02	Electric resistance device.
US999371A	1909-06-15	Vacuum-cleaner.
US1015894A	1909-01-16	Vacuum-currycomb.
US949080A	1907-05-03	Pneumatic tool.
US856706A	1906-01-09	Pneumatic tool.
US780354A	1904-10-15	Pneumatic tool.
US762861A	1904-03-05	Handle for pneumatic tools.
US762860A	1904-02-26	Handle for pneumatic tools.
US711771A	1902-05-16	Hose-coupling and automatic valve.