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PARSONS JOHN H

Overview
  • Total Patents
    13
About

PARSONS JOHN H has a total of 13 patent applications. Its first patent ever was published in 1912. It filed its patents most often in United States and Canada. Its main competitors in its focus markets machines, machine tools and transport are WHISTLER LAWRENCE V, HAFNER OTTO P and STRIPPIT INC.

Patent filings in countries

World map showing PARSONS JOHN Hs patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 4

Patent filings per year

Chart showing PARSONS JOHN Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Parsons John H 13
#2 Lamb Lawrence S 1
#3 Powell Robert M 1
#4 Merrick Anson A 1

Latest patents

Publication Filing date Title
US2468998A Retainer-stripper unit for punch presses
US2180545A Apparatus for tapping sheet metal
US1980595A Fire escape
US2107581A Tool retainer
US1664829A Ventilator for vehicles
US1686171A Window regulator
US1745186A Ventilator for automobile windows
US1595569A Gasoline-reserve-supply apparatus
US1363345A Condenser or muffler for internal-combustion engines
CA139813A Bail for pails, etc.
CA239507A Gasoline reserve supply apparatus
CA616111A Contoured head stripper unit for punch presses
CA270483A Ventilator for vehicles