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AHI OPERATIONS LTD

Overview
  • Total Patents
    195
About

AHI OPERATIONS LTD has a total of 195 patent applications. Its first patent ever was published in 1971. It filed its patents most often in New Zealand, Australia and United Kingdom. Its main competitors in its focus markets machines, medical technology and civil engineering are FLINTKOTE MFG COMPANY, BENDER LLOYD F and ISOLA FABRIKKER AS.

Patent filings per year

Chart showing AHI OPERATIONS LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Millar Thomas Douglas 25
#2 Millar Thomas D 9
#3 Millar T D 8
#4 Macdonald G 7
#5 Wearne Geoffrey Lance 7
#6 Jones Graham Trevor 7
#7 Dow Warren Stuart 7
#8 Macdonald Glen 6
#9 Zijlstra J 5
#10 Wenham D 5

Latest patents

Publication Filing date Title
GB8604521D0 Expansion/contraction gutter joiners
EP0173777A1 Pressure regulating valves
AU3231084A Packaging carcasses
AU2851484A Pivotal friction joints for window stays
NZ204810A Teat-cup washer inlet valve controlled by teat-cup vacuum
AU1148483A Plastics bag for packaging animal carcass
NZ202379A Strippable coating compositions containing atactic polypropylene
NZ202141A Apparatus and method for sealing plastics bags placed about animal carcasses of varying size
NZ202087A Fruit packing tray with hinged sides which can be externally unlocked so as to view contents
AU1926483A Gutter, fascia or soffit bracket
NZ201985A Fascia and soffit support bracket
GB2107282A Milk sampling device
NZ201628A Pressure regulating valve with two interconnected diaphragms
NZ201419A Making weighted teat cup shells
NZ196724A A support bracket for a fascia,soffit and gutter:combinations of said components with an additional soffit support member
NZ200957A Making multilayer flexible container pouches
NZ196340A Moveable gas nozzle unit for opening bags in a packaging process:nozzle mounted on trolley
EP0065871A1 Milking systems and methods of operation thereof
IE821120L Milking system
NZ200564A Device for slowly releasing chemicals into body cavities of animals