Liwen Wei — 16 Patents at ExxonMobil

Liwen Wei has been granted 16 US patents while listed as an inventor at ExxonMobil. The first was granted in 1990 and the most recent in September 2025. Liwen Wei ranks #284,196 of 4,157,543 US inventors in our database (top 6.8%). Patent records list Liwen Wei in Tomball, TX, US.

Patents per Year

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Showing 1–16 of 16 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12410378	Methods of making pol yurea powders, gels and greases, and related compositions made therefrom	—	2025-09-09
8789623	High performance rock bit grease	David P. Duckworth, Ping Sui	2014-07-29	$20,121,000
8709276	Synthetic refrigeration oil composition for HFC applications	Phil Beckler	2014-04-29
8268188	Synthetic refrigeration oil composition for HFC applications	Phil Beckler	2012-09-18
8123974	Synthetic refrigeration oil composition for HFC applications	Phil Beckler	2012-02-28
8043524	Synthetic refrigeration oil composition for HFC applications	Phil Beckler	2011-10-25
6087307	Polyether fluids miscible with non-polar hydrocarbon lubricants	Joan M. Kaminski, Richard N. Nipe, Margaret M. Wu	2000-07-11
5741946	Polyether lubricants and method for their production	—	1998-04-21	$157,552,000
5648557	Polyether lubricants and method for their production	—	1997-07-15	$219,791,000
5520709	Hydrocarbyl ethers of sulfur-containing hydroxyl derived aromatics as synthetic lubricant base stocks	Andrew G. Horodysky, Andrew Jeng, Ross A. Kremer	1996-05-28	$64,186,000
5368759	Ester fluids with high temperature stability	Andrew G. Horodysky, Ross A. Kremer	1994-11-29	$32,660,000
5344578	Hydrocarbyl ethers of sulfur-containing hydroxyl derived aromatics as synthetic lubricant base stocks	Andrew G. Horodysky, Andrew Jeng, Ross A. Kremer	1994-09-06	$15,456,000
5300274	Method for making molybdenum and sulfur containing compounds	Catherine L. Coyle, Thomas R. Halbert, Edward I. Stiefel	1994-04-05	$33,256,000
5207937	Amine salts of sulfur-containing alkylated phenols or alkylated naphthols as multifunctional antioxidant and antiwear additives	Shih-Ying Hsu, Arjun K. Goyal, Andrew G. Horodysky	1993-05-04	$19,148,000
4997962	Synthesis of tetrathioperrhenate salts	Thomas R. Halbert, Edward I. Stiefel	1991-03-05	$42,570,000
4954645	Dithioacid rhenium sulfide dimer compositions	Thomas R. Halbert, Edward I. Stiefel	1990-09-04	$35,393,000

Liwen Wei — 16 Patents

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