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 › Stub-out bar

Stub-out bar

US Patent 6519791 · Granted Feb 18, 2003

Assignee

Securus

Inventors

Scott W. Randolph (6 patents)

View full patent text on Google Patents →

More Patents by These Inventors

Dual slide gate valve and method for using same2010

Dual slide gate valve and method for using same2008

Dual slide gate valve and method for using same2006

Method and apparatus for pressure testing pipe lines2003

Lawn and garden irrigation controller1995

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

Last updated: Dec 31, 2025 · Updated quarterly