Dong Tengfei

USPTO Trademark & Patent Filings

Trademark applications and grants for Dong Tengfei. Dong Tengfei has 1 trademark applications. The latest application filed is for "LOCELSO"

Company Profile

Dong,Tengfei
tengfei dong
Dong; Tengfei - Beijing CN
DONG; Tengfei - Beijing CN
Dong; Tengfei - Taiyuan CN

Trademarks Patents

Patent Applications

Patent Application	Date
AMPHIPHILIC BLOCK POLYMER ULTRALOW-PERMEABILITY AGENT AND INTELLIGENT TEMPORARY PLUGGING TYPE WATER-BASED DRILLING FLUID 20220204833 - 17/696549 He; Yinbo ; et al.	2022-06-30
AMPHIPHILIC BLOCK POLYMER ULTRALOW-PERMEABILITY AGENT AND INTELLIGENT TEMPORARY PLUGGING TYPE WATER-BASED DRILLING FLUID 20220049148 - 17/350849 HE; Yinbo ; et al.	2022-02-17
INTELLIGENT PREDICTION METHOD AND APPARATUS FOR RESERVOIR SENSITIVITY 20210388720 - 17/345904 JIANG; Guancheng ; et al.	2021-12-16
SATURATED SALT WATER DRILLING FLUID OF SALT RESPONSE TYPE INTELLIGENT POLYMER AND PREPARATION METHOD THEREOF 20210348046 - 17/317406 JIANG; Guancheng ; et al.	2021-11-11
Method For Installing Steel Tube Arches 20210164176 - 17/168177 Zhang; YUGEN ; et al.	2021-06-03
Saturated salt water drilling fluid of salt response type intelligent polymer and preparation method thereof 11,453,812 - 17/317,406 Jiang , et al. September 27, 2	2022-09-27
Intelligent prediction method and apparatus for reservoir sensitivity 11,326,450 - 17/345,904 Jiang , et al. May 10, 2	2022-05-10
Biodiesel-based constant rheological property drilling fluid containing intelligent temperature responsive polymer 11,136,488 - 17/228,424 Jiang , et al. October 5, 2	2021-10-05
Calcium-resistant zwitterionic polymer, preparation method and application thereof, and water-based drilling fluid containing polymer as dispersant 11,034,876 - 17/153,260 He , et al. June 15, 2	2021-06-15
Modified polyhistidine suitable for being used as a supramolecular shale inhibitor, method of preparing the same and its application in water-based drilling fluids 10,889,742 - 16/887,869 Jiang , et al. January 12, 2	2021-01-12

Patent Grants & Applications

Trademark Applications

Mark Image Registration \| Serial	Trademark Application Date
"LOCELSO" 90457740	LOCELSO 2021-01-11

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