Kindred,
Innovations, treatments, cures are often not developed in a day.
Most often it takes days or even years to fully develop and realize a concept.
It took Thomas Edison over 2,700 tries and many years of trying to succeed at developing the light bulb (by the way, a concept he did not invent, but did purchase the patents for).
Credit for an idea or concept must go to the originator.
Ideas for treatments and cures sometimes takes twenty five years or longer, because must wait the technical advancements and developments before it can be finalized and then realized.
Leonardo Da Vinci's concepts of the helicopter and parachute were not developed until hundreds of years after his death.
Still they were his ideas and concepts that originate during his lifetime, not ours.
Therefore my ideas that originated twenty five years ago belongs to that time period and subsequent adding or tweeking still are continuations of works began during that time period or earlier.
Copycats deserve no credit and theft of intellectual property (at any time) must be condemned, prosecuted and property returned.