Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
RD

Robert Dugal — 6 Patents

FUForum Us: 3 patents #31 of 112Top 30%
BLBlackberry Limited: 1 patents #1,631 of 2,554Top 65%
WEWeatherford/Lamb: 1 patents #476 of 852Top 60%
Spring, TX: #466 of 2,039 inventorsTop 25%
Texas: #24,375 of 125,132 inventorsTop 20%
Overall (All Time): #821,586 of 4,157,543Top 20%
6 Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
10927616 Elevator with securing apparatus and method of moving tubulars Frederik Stoldt, Victor Manuel Eslava Moreno, Robert Arlen Holifield 2021-02-23
10570679 Elevator with securing apparatus and method of moving tubulars Frederik Stoldt, Victor Manuel Eslava Moreno, Robert Arlen Holifield 2020-02-25
10329854 Tubular transfer system and method Rogelio Rios, Robert Arlen Holifield, Justin Wayne Triplett 2019-06-25
10270603 Processing certificate validation warnings Chang Fung Yang, Jason Songbo Xu 2019-04-23
8919841 Method and apparatus for attachment of a secondary tool handling device to a primary tool handling device David J. Havens, Lawrence E. Childress, II 2014-12-30
7503397 Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly Richard L. Giroux, Albert C. Odell, II, Gary Thompson, David M. Haugen, Tuong Thanh Le +2 more 2009-03-17