Andy Jeng — 2 Patents at United Microelectronics

Andy Jeng has been granted 2 US patents while listed as an inventor at United Microelectronics. The first was granted in 1998 and the most recent in October 1999. Andy Jeng ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Andy Jeng in Danei, TW.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5966767	Pipe cleaning device	Chung-Chien Lu, Tien-Fu Tseng, Chih-Horng Chou	1999-10-19
5728254	Ceramic ring for guiding a wafer down to the lower electrode of a dry etcher	—	1998-03-17

Andy Jeng — 2 Patents

Issued Patents All Time

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