Obituary and death records (legacy.com / Post and Courier / Darst Funeral Home), 2026-10-08

Access: Google result snippets in Chrome (pages not opened beyond the snippet). Queries: "Ronald Stiffler" OR "Ronald R. Stiffler" obituary OR died Texas; Darst Funeral Home "Stiffler" 2018; "Ronald R. Stiffler" -scribd -"spatial energy"; "Dr Stiffler" OR "Dr. Stiffler" "passed away" OR "RIP" 2018 SEC.

Found

Reading

Three independent sources agree on a death in November 2018 (Kingwood/Humble area obituary notice; a free-energy newsletter of January 2019 saying "last November"; a forum condolence in 2018). That the obituary person is the inventor is an inference from name, place and date; the full Darst Funeral Home obituary was not read and would confirm it (and might give his education and career, e.g. the "Dr." title and the "Advanced Technology Group").

Bears on

  • Absence of evidence: the record stops in mid-2018 because the inventor died in November 2018. The unconverted provisional patent, the dead web sites (stifflerscientific.com and drstiffler.com did not respond) and the unpublished SEC paper fit this.