Polycarboxylate thinner for carbonate/bicarbonate contamination resistant water-based drilling fluid and preparation method and application thereof
US-12509620-B1 · Dec 30, 2025 · US
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Univ China Petroleum East China patents in 2025
Univ China Petroleum East China was listed as an assignee on 62 patent publications in 2025.
| Metric | Value |
|---|---|
| Company | Univ China Petroleum East China |
| Year | 2025 |
| Patents | 62 |
Patents
Representative publications for Univ China Petroleum East China in 2025.
Sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG
US-12487033-B2 · Dec 2, 2025 · US
Preparation method and use of cobalt nanoparticle/boron nitride composite
US-12478957-B2 · Nov 25, 2025 · US
Device and method for rapidly regulating downhole pressure after kick in deepwater shallow open-circuit drilling
US-12480371-B1 · Nov 25, 2025 · US
Intelligent operation and maintenance optimization method and intelligent production optimization method for offshore oil subsea production system (SPS), and system
US-12475423-B1 · Nov 18, 2025 · US
Top CPC classifications
Most common classification codes for Univ China Petroleum East China in 2025.
| CPC | Patents |
|---|---|
| C09K8/24 | 7 |
| G01N15/0826 | 6 |
| G01N33/24 | 6 |
| G06F30/20 | 6 |
| C09K8/035 | 5 |
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