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NELSON NORMAN A

Overview
  • Total Patents
    24
About

NELSON NORMAN A has a total of 24 patent applications. Its first patent ever was published in 1962. It filed its patents most often in United States, Canada and Norway. Its main competitors in its focus markets civil engineering, machines and mechanical elements are BAKERDRILL INC, PLEXUS OCEAN SYST LTD and HINDERLITER FRANK J.

Patent filings in countries

World map showing NELSON NORMAN As patent filings in countries
# Country Total Patents
#1 United States 17
#2 Canada 6
#3 Norway 1

Patent filings per year

Chart showing NELSON NORMAN As patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Nelson Norman A 12
#2 Putch Samuel W 8
#3 Nelson Fred B 4
#4 Vandenberg Gary E 1

Latest patents

Publication Filing date Title
US4958686A Subsea well completion system and method of operation
US4989902A Ratcheting and threaded well connector
US4773477A Well suspension assembly
CA1189445A Wellhead connector
US4453745A Lockdown mechanism for wellhead connector
US4526406A Wellhead connector
CA1117412A Well casing hanger assembly
US4216835A System for connecting an underwater platform to an underwater floor
US4232889A Recockable well hanger
CA1029970A Modulator underwater well platform system
US3972546A Locking assembly and a seal assembly for a well
CA1011649A Locking assembly and a seal assembly for a well
US3934658A Modular underwater well platform system
US3918747A Well suspension system
US3692895A Method of reducing hypercholesteremia in humans employing a copolymer of polyethylenepolyamine and a bifunctional substance, such as epichlorohydria
US3469453A Fluid sampling apparatus
US3443435A Metering apparatus
US3351136A Casing centralizer and well bore wiper
US3185227A Well drilling apparatus
US3216514A Rotary drilling apparatus