Learn more

ENG RESOURCES DEV OFFICE

Overview
  • Total Patents
    14
About

ENG RESOURCES DEV OFFICE has a total of 14 patent applications. Its first patent ever was published in 1979. It filed its patents most often in Japan, EPO (European Patent Office) and United States. Its main competitors in its focus markets packaging and shipping, machines and measurement are RESPUB PROEKTNO IZYSKATELSKIJ, SEELEMANN & SOEHNE ANTON and YANGZHOU YANGGONG MACHINERY CO LTD.

Patent filings in countries

World map showing ENG RESOURCES DEV OFFICEs patent filings in countries
# Country Total Patents
#1 Japan 12
#2 EPO (European Patent Office) 1
#3 United States 1

Patent filings per year

Chart showing ENG RESOURCES DEV OFFICEs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Packaging and shipping
#2 Machines
#3 Measurement

Top inventors

# Name Total Patents
#1 Tomikawa Koichi 3
#2 Gondo Tsukasa 3
#3 Tomikawa Kouichi 3
#4 Saito Sukeyuki 2
#5 Suzuki Shigeru 2
#6 Nishimura Masao 2
#7 Takahashi Hiroshi 2
#8 Obara Takanori 2
#9 Nagao Akira 1
#10 Nishikawa Takashi 1

Latest patents

Publication Filing date Title
JPH07229396A Projection device for concrete or the like
JPH07158380A Lining device for caisson type pile shaft inner wall
JPH0658856A Drawing test method for concrete
JPH03235875A Wet concrete spraying method
JPH03100274A Pneumatic cut-out feeding device for rapid joining agent
JPH0310809A Tube mortar lining device
JPH0238005A Mortar lining apparatus for pipe
JPS6429576A Concrete spray system
JPS6172173A Wet spraying construction method in tunnel
JPS6128670A Wet spraying method
JPS56124465A Method and apparatus for spraying cement mortar, etc.
JPS5633056A Rotor-type spray