Take the following as truth: He had several patents on his conscience already: an automatic cork opener for wine in the indicative state, a portable set of board games for solving personality problems, a wallet with a mini-device for the duplications of 100 zloty bills, and a piece of equipment 'the day after' used to irretrievably eliminate from the time-space continuum days burdened with a hangover.
Then the following statement: "He had been dwelling on his patents for a long time." is true, false, or inconclusive?
Answer: Inconclusive