In IOEngine v. Paypal Holdings, Inc., C.A. No. 18-452-WCB (D. Del.), the inventor kept a box of 33 prototypes for his invention in his basement "laboratory."
One of the prototypes—the "MediKey device"—had been the subject of intense dispute in a previous case on his patent. It had been analyzed by experts for both sides, who disputed its functionality and whether he had accurately described it to the PTO (as part of an inequitable conduct claim).
After a series of electrical incidents and fires in his laboratory, involving visits from various electricians and fire control personnel, the inventor discovered that the prototypes were in a new box and that the MediKey device was missing. …