Daniel L. Havelka

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Wiper seal system and method
- Patent number 10,648,566
- Issue date May 12, 2020
- Vetco Gray, LLC
- Rockford Dee Lyle
- E21 - EARTH DRILLING MINING
Information Patent Grant
Inverted pull-up riser tensioner
- Patent number 10,174,566
- Issue date Jan 8, 2019
- Vetco Gray, LLC
- Benjamin James Kubichek
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Tensioner cylinder with internal gas bladder in high pressure chamber
- Patent number 9,816,538
- Issue date Nov 14, 2017
- Vetco Gray Inc.
- Robert James Wagner
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Rapid makeup drilling riser
- Patent number 7,686,087
- Issue date Mar 30, 2010
- Vetco Gray Inc.
- Joseph W. Pallini
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
WIPER SEAL SYSTEM AND METHOD
- Publication number 20190264813
- Publication date Aug 29, 2019
- Vetco Gray, LLC
- Rockford Dee Lyle
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
INVERTED PULL-UP RISER TENSIONER
- Publication number 20170254159
- Publication date Sep 7, 2017
- Vetco Gray Inc.
- Benjamin James Kubichek
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Application
Rapid Makeup Drilling Riser
- Publication number 20070267197
- Publication date Nov 22, 2007
- Vetco Gray Inc.
- Joseph W. Pallini
- E21 - EARTH DRILLING MINING