Liner/casing buoyancy arrangement, method and system
US-12055000-B2 · Aug 6, 2024 · US
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Zhang Zhihui patents
Zhang Zhihui holds 65 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 65 |
| Recent patents | 10 |
| First publication | May 14, 2015 |
| Latest publication | Aug 6, 2024 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
Disintegrable downhole tools and method of use
US-11851967-B2 · Dec 26, 2023 · US
Disintegrable rubber seal, method of manufacture, and application thereof
US-11787991-B1 · Oct 17, 2023 · US
Disintegrable rubber seal, method of manufacture, and application thereof
US-2023323186-A1 · Oct 12, 2023 · US
Disintegrable downhole tools and method of use
US-2023304370-A1 · Sep 28, 2023 · US
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Liner/casing buoyancy arrangement, method and system
US-12055000-B2 · Aug 6, 2024 · US
Disintegrable downhole tools and method of use
US-11851967-B2 · Dec 26, 2023 · US
Disintegrable rubber seal, method of manufacture, and application thereof
US-11787991-B1 · Oct 17, 2023 · US
Disintegrable rubber seal, method of manufacture, and application thereof
US-2023323186-A1 · Oct 12, 2023 · US
Disintegrable downhole tools and method of use
US-2023304370-A1 · Sep 28, 2023 · US
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Fixed Constructions | 58 |
| Chemistry & Metallurgy | 28 |
| Operations & Transport | 16 |
| Mechanical Engineering | 2 |
| Physics | 2 |
| Cross-Sectional Technologies | 2 |
| Electricity | 1 |