Gui Yu — 2 Patents at Koppers | Patent Leaderboard

Gui Yu has been granted 2 US patents while listed as an inventor at Koppers. The first was granted in 1986 and the most recent in April 1987. Gui Yu ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Gui Yu in Nanjing, CN.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4656023	Hyperstoichiometric zirconium-titanium-chromium iron alloys	William Eric Wallace	1987-04-07	$4,431,000
4567032	Zirconium-manganese-iron alloys	William Eric Wallace	1986-01-28	$4,290,000

Gui Yu — 2 Patents

Issued Patents All Time

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