![]() ![]() Looking at this data set, there are a few things that really stand out. ![]() After doing this I am down to just over 3100 patent families of genuine alleged perpetual motion machines. Any family falling into this category would appear to have utility by being classified first in a typical IPC or CPC class, and having an alleged perpetua mobilia class thrown in at the end just in case. I will take an extra step at this point and remove any family where one of the classes above is not the first listed. This search finds just under 8000 patent families. There are a few other keywords that could be used, but it is useful to look for those inventors who are upfront about their ambitions. I have conducted a search in PatBase in the four IPC and CPC classes above as well as looking for the keywords “perpetual motion” in the title, abstract or claims, for anything filed since January 2015. They were always there the idea has always been doubtful. These are not classifications that have expanded over time as the level of innovation in these areas demands it, and where a subclass has been added years later. Second, these classes have been in place since year dot of the IPC, way back in 1971. They are giving inventors the benefit of the doubt before refusing the application. The CPC (Cooperative Patent Classification) is almost identical, except the H02N11 class has been subdivided so that the CPC gives H02N11/008 as the relevant subclass. gravity or inertia motors and F25B9/00 Compression machines, plant, or systems, in which the refrigerant is air or other gas of low boiling point, but for simplicity I am going to ignore these. The two others are F03G3/00 Other motors, e.g. H02N11/00 Generators or motors not provided for elsewhere Alleged perpetua mobilia obtained by electric or magnetic means.H02K53/00 Alleged dynamo-electric perpetua mobilia.F03B17/04 Other machines or engines, with a 2-dot subclass for alleged perpetua mobilia.F03G7/10 Mechanical-power-producing mechanisms using energy sources not otherwise provided for, with a 1-dot subclass for alleged perpetua mobilia.There are four IPC classes that specifically mention perpetua mobilia, and a couple more that seriously think about it. The same goes for perpetual motion, or as the Latinistas of WIPO have put it, perpetua mobilia. Some even explicitly claim perpetual motion as an essential feature.Īs a patent searcher, when I have to conduct a novelty search into an inventor’s magnum opus, and I look at the IPC (International Patent Classification) and find that there is an obscure subclass specifically dedicated to that aspect of the technology, I know things are not going to end well. It is what it is, and a simple googling will tell you so, but that does not stop inventors from claiming machines that do more work or create free energy from nothing. The purpose of this article is not to start reciting and examining the law. Violating a few of the laws of thermodynamics hasn’t seemed to be a problem for countless individuals, even long before there was any way of protecting their intellectual property, and now that there is, the good burghers of IP Land have decided that such machines are unpatentable subject matter. Some energy is always lost through friction or otherwise dissipates so that not all of the energy is produced as work. The second law of thermodynamics relates to entropy, defining that the total entropy of a system will always increase over time. The first law of thermodynamics relates to the conservation of energy, so if you are not adding energy to a system, you cannot take energy out and expect the system to work indefinitely. Such a machine is impossible as it would violate the first or second law of thermodynamics (that internal groan isn’t likely be your last). A perpetual motion machine is one that can do infinite work with no energy input. ![]()
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