loadpatents
Patent applications and USPTO patent grants for DU; Jianfen.The latest application filed is for "method for evaluating difference in gas injection effect of gas injection wells in carbonate reservoir".
Patent | Date |
---|---|
Method For Evaluating Difference In Gas Injection Effect Of Gas Injection Wells In Carbonate Reservoir App 20200340356 - HU; Yisheng ;   et al. | 2020-10-29 |
Direct method for manufacturing large model fractured core and maintaining original oil-water saturation Grant 10,746,638 - Guo , et al. A | 2020-08-18 |
Manufacturing method of big-model low-permeability microcrack core Grant 10,364,184 - Guo , et al. July 30, 2 | 2019-07-30 |
Manufacturing Method of Big-model Low-Permeability Microcrack Core App 20190002344 - GUO; Ping ;   et al. | 2019-01-03 |
Direct Method For Manufacturing Large Model Fractured Core And Maintaining Original Oil-water Saturation App 20180348105 - GUO; Ping ;   et al. | 2018-12-06 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.