Of course this argument doesn't technically hold water when you consider end of life cost. Here when I dispose or replace any electrical item I have to pay a WEEE cost which is a disposal cost for electrical items but if the above argument held true then the OEM is liable. Now to retrospectively charge the OEMs for the cost of the millions of units disposed of in just the last 10 years would run into 100's of millions and more likely billions. Then there's the issue of all the computer repair companies are they operating illegally? and for that matter the automotive OEMs do not design and manufacture 99.9% of the electronics in their vehicles, it is the tier one, two and three suppliers and they are the ones with the expertise which they guard like a tiger so technically the Forklift OEMs are breaching the above since they don't hold no patents on the CPUs, ALUs, algorithms, ASICs, PIAs, UARTS, PALs, PLAs, DACs, ADCs, vector controllers, PIDs etc in their machines. So when you analyse the above argument you will find that by the time you define ownership then most if not all OEMs are in breach of the above which is of course pedantic but absurd.