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WARD DAVID P

Overview
  • Total Patents
    11
About

WARD DAVID P has a total of 11 patent applications. Its first patent ever was published in 1969. It filed its patents most often in United States. Its main competitors in its focus markets machines, mechanical elements and engines, pumps and turbines are WALLACE CHARLES F, SCRAGG EDGAR PETER and GLASCOTE PRODUCTS INC.

Patent filings in countries

World map showing WARD DAVID Ps patent filings in countries
# Country Total Patents
#1 United States 11

Patent filings per year

Chart showing WARD DAVID Ps patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ward David P 8
#2 Jones James S 4
#3 Ward Phillip C 1

Latest patents

Publication Filing date Title
US8631828B1 Anhydrous ammonia flow dividing manifold
US2010319788A1 Separating liquid shut-off for ammonia vapor transfer system
US2010319237A1 Audible fishing weight
US2010319794A1 Hose bend bleeder for ammonia application system
US2010319596A1 Meter pre-cooler for ammonia application system
US2010300564A1 Ammonia application system including an ammonia dividing manifold with vapor stripper venturi
US5170820A Management system for the application of anhydrous ammonia fertilizer
US5176855A Liquid fuel system with tilt valve
US5076245A Fuel pressure control system for gaseous fuel engines
US4900339A Ammonia flow divider
US3540469A Excess flow check valve