Patent Leaderboard

USPTO Patent Rankings Data through Dec 31, 2025

Search Companies Inventors Cities States

Home › Book holder assembly

Book holder assembly

US Patent 6971621 · Granted Dec 6, 2005

Assignee

No assignee recorded.

Inventors

Ronald J. Gaines (6 patents)

View full patent text on Google Patents →

More Patents by These Inventors

Glove donning and removal apparatus2010

Advanced thick film load cell2008

Apparatus and method for measuring weld circuit2002

Weighing apparatus with an adjustable ratio of stresses in the load bearing memb1993

Planar load cell1990

Data from USPTO via PatentsView — © 2026 Patent Leaderboard

Last updated: Dec 31, 2025 · Updated quarterly