DH

Daniel Louis Havelka

VG Vetco Gray: 4 patents #55 of 364Top 20%
📍 Houston, TX: #5,364 of 21,073 inventorsTop 30%
🗺 Texas: #33,546 of 125,132 inventorsTop 30%
Overall (All Time): #1,167,157 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10648566 Wiper seal system and method Rockford D. Lyle, Jesse B. Riha, Robert James Wagner 2020-05-12
10174566 Inverted pull-up riser tensioner Benjamin James Kubichek, Joseph W. Pallini, Jesse B. Riha, Robert James Wagner 2019-01-08
9816538 Tensioner cylinder with internal gas bladder in high pressure chamber Robert James Wagner, Benjamin James Kubichek 2017-11-14
7686087 Rapid makeup drilling riser Joseph W. Pallini, Scott I. Stewart, Steve Wong 2010-03-30