Learn more

KEMP WILLARD E

Overview
  • Total Patents
    12
About

KEMP WILLARD E has a total of 12 patent applications. Its first patent ever was published in 1979. It filed its patents most often in United States, Brazil and Canada. Its main competitors in its focus markets mechanical elements, materials and metallurgy and surface technology and coating are Shijiazhuang sanhuan valve co ltd, BROEN AS and YANCHENG JINGSHENG PETROCHEMICAL MACHINERY CO LTD.

Patent filings in countries

World map showing KEMP WILLARD Es patent filings in countries
# Country Total Patents
#1 United States 8
#2 Brazil 1
#3 Canada 1
#4 United Kingdom 1
#5 Norway 1

Patent filings per year

Chart showing KEMP WILLARD Es patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kemp Willard E 12

Latest patents

Publication Filing date Title
US2007252102A1 Ball valve having annular springs seats
US5324009A Apparatus for surface hardening of refractory metal workpieces
US4530488A Through conduit gate valve with double expanding gate assembly
US4588164A Through conduit gate valve
US4379725A Process for hot isostatic pressing of a metal workpiece
US4410373A Process for heat treatment of a metal workpiece
US4318437A Metal casting system
US4249889A Method and apparatus for preheating, positioning and holding objects