Skip to content

Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Universities Inventors Cities States Technologies Top Patents Inventor 500

Select ranking year

Home › Photochromatic toy

Photochromatic toy

US Patent 6322416 · Granted Nov 27, 2001

Assignee

No assignee recorded.

Inventors

Brian Burke (6 patents)

View full patent text on Google Patents →

More Patents by These Inventors

Adaptive sensor array system and method2022

Model railway aesthetic insert2016

Automated feedback cancellation in a network-based transaction facility2011

Feedback cancellation in a network-based transaction facility2010

System function configurable computing platform2004

Data from USPTO via PatentsView — About — Embed & Press Kit — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly