| Utility: Catalyst for preparing cumene and use thereof Filling date: 26 Sep 2025 Issue date: 24 Mar 2020 | 20 Jun 2018 | 24 Mar 2020 |
| Utility: Method and apparatus for improving drilling electronics performance Filling date: 26 Sep 2025 Issue date: 17 Mar 2020 | 29 Dec 2017 | 17 Mar 2020 |
| Utility: Resistivity measurement while drilling device and method Filling date: 26 Sep 2025 Issue date: 25 Feb 2020 | 8 Aug 2017 | 25 Feb 2020 |
| Utility: Separation device Filling date: 26 Sep 2025 Issue date: 18 Feb 2020 | 15 Aug 2018 | 18 Feb 2020 |
| Utility: Flame retardant, composite flame retardant, flame retardant antistatic composition and flame resistant method Filling date: 26 Sep 2025 Issue date: 11 Feb 2020 | 28 Apr 2017 | 11 Feb 2020 |
| Utility: Process for preparing high-performance polypropylenes Filling date: 26 Sep 2025 Issue date: 28 Jan 2020 | 12 May 2015 | 28 Jan 2020 |
| Utility: Maleamic acid monomer and preparation method and use thereof Filling date: 26 Sep 2025 Issue date: 21 Jan 2020 | 12 Sep 2018 | 21 Jan 2020 |
| Utility: Heteroatom-containing nanocarbon material, preparation method and use thereof, and method for dehydrogenation reaction of hydrocarbons Filling date: 26 Sep 2025 Issue date: 21 Jan 2020 | 27 Jan 2016 | 21 Jan 2020 |
| Utility: Carbon-based magnesium-containing composite material and synthetic method therefor Filling date: 26 Sep 2025 Issue date: 21 Jan 2020 | 27 Jan 2016 | 21 Jan 2020 |
| Utility: Process of cultivating microalgae and a joint method of same with a denitration process Filling date: 26 Sep 2025 Issue date: 14 Jan 2020 | 17 Mar 2015 | 14 Jan 2020 |
| Utility: Na-Y molecular sieve, H-Y molecular sieve, and preparation methods thereof, hydrocracking catalyst, and hydrocracking method Filling date: 26 Sep 2025 Issue date: 7 Jan 2020 | 11 Feb 2019 | 7 Jan 2020 |
| Utility: Method of producing a highly-pure aluminum hydroxide Filling date: 26 Sep 2025 Issue date: 7 Jan 2020 | 21 Jul 2017 | 7 Jan 2020 |
| Utility: Surfactant composition and preparation method therefor and application thereof Filling date: 26 Sep 2025 Issue date: 7 Jan 2020 | 12 Aug 2014 | 7 Jan 2020 |
| Utility: Ion-exchange process Filling date: 26 Sep 2025 Issue date: 31 Dec 2019 | 18 Apr 2017 | 31 Dec 2019 |
| Utility: System for geosteering and formation evaluation utilizing near-bit sensors Filling date: 26 Sep 2025 Issue date: 31 Dec 2019 | 19 Feb 2016 | 31 Dec 2019 |
| Utility: Near-bit ultradeep measurement system for geosteering and formation evaluation Filling date: 26 Sep 2025 Issue date: 12 Nov 2019 | 30 Mar 2018 | 12 Nov 2019 |
| Utility: Sleeve fracturing assembly, device using the same and method for using the same Filling date: 26 Sep 2025 Issue date: 22 Oct 2019 | 1 May 2017 | 22 Oct 2019 |
| Utility: Process for producing aromatics, p-xylene and terephthalic acid, and device for producing aromatics Filling date: 26 Sep 2025 Issue date: 8 Oct 2019 | 17 Jun 2016 | 8 Oct 2019 |
| Utility: Carbon dioxide absorbent and method for absorbing and desorbing carbon dioxide Filling date: 26 Sep 2025 Issue date: 8 Oct 2019 | 13 Oct 2015 | 8 Oct 2019 |
| Utility: SCM-10 molecular sieve, process for producing same and use thereof Filling date: 26 Sep 2025 Issue date: 3 Sep 2019 | 9 Nov 2016 | 3 Sep 2019 |
| Utility: Olefin oxidation process, reaction apparatus and system Filling date: 26 Sep 2025 Issue date: 3 Sep 2019 | 29 Sep 2015 | 3 Sep 2019 |
| Utility: Anionic-cationic-nonionic surfactant, production and use thereof Filling date: 26 Sep 2025 Issue date: 3 Sep 2019 | 22 Oct 2014 | 3 Sep 2019 |
| Utility: Hydrocracking catalyst, preparation method and use thereof, and method for hydrocracking catalytic diesel oil Filling date: 26 Sep 2025 Issue date: 27 Aug 2019 | 11 Nov 2016 | 27 Aug 2019 |
| Utility: Modified composite molecular sieve and preparation method thereof, and paraffin isomerization catalyst Filling date: 26 Sep 2025 Issue date: 27 Aug 2019 | 9 Nov 2016 | 27 Aug 2019 |
| Utility: Crystallization column and crystallization method Filling date: 26 Sep 2025 Issue date: 20 Aug 2019 | 9 Nov 2015 | 20 Aug 2019 |
| Utility: High temperature drilling electronics Filling date: 26 Sep 2025 Issue date: 6 Aug 2019 | 29 Dec 2017 | 6 Aug 2019 |
| Utility: System for geosteering and formation evaluation utilizing near-bit sensors Filling date: 26 Sep 2025 Issue date: 30 Jul 2019 | 30 Mar 2018 | 30 Jul 2019 |
