2026-10-08 ferrocell.us (Timm Vanderelli, Ferrocell USA)
Priority 2/3. Named in the book (p.4, ferrocell images). curl of /, /history, /about, /research, /references.html (history/about/research return the same 107 KB page). Grepped for wheeler, dielectric, Tufaile, patent, RGB, LED, anisotropy.
Found [web: https://www.ferrocell.us/]
- Product: "62mm x 4mm Ferrocell with ring of 36 RGBW LED's with a 5-magnet Halbach array". Page metadata dates 2014-07-18 / 2014-07-25.
- Closing notice: "Thank you for your interest and support over these past 11 years. All existing warranties will be honored." and "Ferrocell® USA 2014 to 2026". The business appears to be closing in 2026 (historical record: the archive of these references may not stay online).
- Links: Ferrocell Educational Guide by Profs. Alberto and Adriana Tufaile (downloaded), Vanderelli's "Electromagnetic_lensing_using_a_Ferrocell_V2.pdf" (downloaded), trademark link https://trademarks.justia.com/861/85/ferrocell-86185455.html (Ferrocell trademark, serial 86185455; not opened), magnetismtoroidaldynamics.com (not opened), pic2mag.com.
- References page lists the MMM2021 webinar, a 2020 Chaos conference paper, the 2019 TechConnect lecture, and V. G. Harris (ed.), Modern Ferrites (Wiley 2022), chapter 1.
- No match for "Wheeler" or "dielectric" on the home page.
Related patent (Google Patents, same day)
Vanderelli's US20070241745A1 "Magnetic flux viewer", priority 2006-04-13 [web: https://patents.google.com/patent/US20070241745A1]; this is the device family behind the Ferrocell, eight years before Wheeler's book.
Bearing
Claim 6: the device maker's own materials describe the device as a magneto-optic viewer, without Wheeler's model. Stake: commercial seller.