Frederick E. Liu — 4 Patents at Chums

Frederick E. Liu has been granted 4 US patents while listed as an inventor at Chums. The first was granted in 1992 and the most recent in November 2003. Frederick E. Liu ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Frederick E. Liu in Jackson, WY, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
6644808	End fastener for eyeglass retainers	—	2003-11-11
D477835	End fastener for an eyeglass retainer	—	2003-07-29
5549329	Ski pole and removable hand grip	Peter Wuerslin, Andrew Maslow	1996-08-27
5081718	Pants type garment having a seamless crotch	David C. Carman, Anthony J. DeRosa, Margaret H. Murphy	1992-01-21

Frederick E. Liu — 4 Patents

Issued Patents All Time

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