Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Inventors Cities States

Home › Crossword puzzle game

Crossword puzzle game

US Patent 5871210 · Granted Feb 16, 1999

Assignee

No assignee recorded.

Inventors

James Harrison (3 patents)

View full patent text on Google Patents →

More Patents by These Inventors

Board games2014

Data from USPTO via PatentsView — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly