Linked by Thom Holwerda on Thu 4th Aug 2011 21:38 UTC
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Member since:
2007-02-17
As far as I know, patents do not protect ideas, they protect implementations of ideas, aka "inventions".
I liken this to a simple concept that people can picture easily:
- A person can invent a new type of water pump, and perhaps get a patent on it, but they cannot get a patent on the idea of pumping water. Another person later on can invent yet another new type of water pump, and they too can perhaps get a patent for it.
- Both inventors have invented water pumps, the two pumps in question just work differently. Neither inventor has a patent on the idea itself of pumping water.
AFAIK, this is how patents work.
Examples with pictures ... there are a number of different steam engines on this page:
http://en.wikipedia.org/wiki/Steam_engine#Motor_units
Double acting stationary steam engine, double piston stroke, oscillating cylinder, triple expansion, uniflow and turbine are shown. AFAIK there are still other types, pistonless rotary engine, Wankel engine, Rankine cycle and Schoelle cycle?
All of these confrom to the idea of a steam engine, but they are all different "inventions", they are all different implementations of that idea of a steam engine.
Edited 2011-08-05 07:13 UTC