Class E03B : INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
Subclass 3/20: Methods or installations for obtaining or collecting drinking water or tap water (treatment of water C02F) from underground Obtaining and confining water by means of wells (applicable to a combination of water and other liquids or to other liquids only E21B 43/00) Component parts of wells Well filters (filters in general B01D 24/00-B01D 35/00) of elements of special shape
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 10633955 | Nano-particle reinforced well screen | Mar 22, 12 | Apr 28, 20 | Halliburton Energy Services, Inc. |
| 9359755 | Water purification and storage system, water-filtering well and polygonal building block | Apr 26, 13 | Jun 07, 16 | Beijing Rechsand Science & Technology Group Co., Ltd |
| 8701758 | Well screen | Feb 25, 09 | Apr 22, 14 | COMPLETION PRODUCTS PTE LTD |
| 8291971 | Crimped end wrapped on pipe well screen | Aug 13, 10 | Oct 23, 12 | HALLIBURTON ENERGY SERVICES, INC. |
| 8146662 | Well screen assembly with multi-gage wire wrapped layer | Apr 08, 09 | Apr 03, 12 | HALLIBURTON ENERGY SERVICES, INC. |
| 7997339 | Conveyance device and method of use in gravel pack operations | May 12, 10 | Aug 16, 11 | SCHLUMBERGER TECHNOLOGY CORPORATION |
| 7100686 | Controlled-pressure drop liner | Oct 07, 03 | Sep 05, 06 | INSTITUT FRANCAIS DU PETROLE |
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