David McWhorter
Inventor
Stats
- 4 US patents issued
- 4 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 4 US Patents Issued
- 4 US Applications Filed
- 68 Total Citation Count
- Aug 26, 2015 Most Recent Filing
- Jan 7, 1999 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| Varco I/P, Inc. | 1
2 | 1999
2005 |
| CAMERON INTERNATIONAL CORPORATION | 2
| 2009
|
| UNIVERSITY OF HOUSTON SYSTEM | 2
2 | 2009
2015 |
Inventor Addresses
| Address | Duration |
|---|---|
| Magnolia, TX | Dec 26, 00 - Sep 18, 07 |
| Magnolia, TX, US | Nov 16, 06 - Jan 23, 18 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| E21B: | EARTH OR ROCK DRILLING | 4 |
| F01B: | MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES | 1 |
| F15B: | SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR | 2 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 9874064 | 2018 | Shape memory alloy powered hydraulic accumulator | 0 |
| 2015/0361,754 | 2015 | SHAPE MEMORY ALLOY POWERED HYDRAULIC ACCUMULATOR | 1 |
| 9127696 | 2015 | Shape memory alloy powered hydraulic accumulator | 2 |
| 2011/0131,964 | 2011 | SHAPE MEMORY ALLOY POWERED HYDRAULIC ACCUMULATOR | 9 |
| 7270190 | 2007 | Variable size coil tubing gripping elements | 18 |
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