Learn more

CPI ENG SERVICES INC

Overview
  • Total Patents
    28
About

CPI ENG SERVICES INC has a total of 28 patent applications. Its first patent ever was published in 1988. It filed its patents most often in United States, Australia and Canada. Its main competitors in its focus markets basic materials chemistry, thermal processes and engines, pumps and turbines are KANEKO MASATO, PATECH FINE CHEMICALS CO LTD and SETRAL CHEMIE GMBH.

Patent filings in countries

World map showing CPI ENG SERVICES INCs patent filings in countries
# Country Total Patents
#1 United States 5
#2 Australia 4
#3 Canada 3
#4 EPO (European Patent Office) 3
#5 Japan 3
#6 Brazil 2
#7 Mexico 2
#8 Norway 2
#9 China 1
#10 Israel 1
#11 Taiwan 1
#12 South Africa 1

Patent filings per year

Chart showing CPI ENG SERVICES INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Short Glenn D 23
#2 Rajewski Thomas E 9
#3 Sjoholm Lars Ivan 8
#4 Guren Deii Shiyooto 3
#5 Sjoeholm Lars I 1
#6 Thomas Rajewski E 1
#7 Lars Sjoholm Ivan 1
#8 Glenn Short D 1
#9 Rarusu Iban Sujiyohorumu 1
#10 Toomasu Ii Rajiyuusukii 1

Latest patents

Publication Filing date Title
AU3029395A Lubricant composition for ammonia refrigerants used in compression refrigeration systems
MX9503679A Lubricant composition for ammonia coolants utilized in compression-cooling systems.
US5595678A Lubricant composition for ammonia refrigerants used in compression refrigeration systems
EP0498152A1 Lubricant composition for fluorinated refrigerants
US5027606A Rotary displacement compression heat transfer systems incorporating highly fluorinated refrigerant-synthetic oil lubricant compositions
US4916914A Rotary displacement compression heat transfer systems incorporating highly fluorinated refrigerant-synthetic oil lubricant compositions