Though I couldn't find an initiation date for the CoreFlash portfolio, here's what they say about initiation of action on the FastLogic portfolio:
"In 2007, Thunderbird Technologies and The TPL Group partnered to advance these protected, fundamental innovations as the FAST logic Portfolio."
But noteable in the Aliacense list pf PRs is that Bosch bought an MMP license on 7/10/08, and Bosch bought a Fastlogic license on 8/27/08.
Time could be spent (wasted) looking back here or on the EDIG board for the date TPL began representing the CoreFlash portfolio. I say a waste because I know absolutely that is was over a year after they began (with the MMP).
FWIW,
SGE