Luyu Yang

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Tyngsborough, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Spin improvement string tool
- Patent number 8,631,834
- Issue date Jan 21, 2014
- Luyu Yang
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Spin improvement string pliers
- Patent number 8,622,096
- Issue date Jan 7, 2014
- Luyu Yang
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Electric paper reinforcer/hole puncher (EPRHP)
- Patent number 7,503,369
- Issue date Mar 17, 2009
- Luyu Yang
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER

Patents Applicationslast 30 patents

Information Patent Application
Electric paper reinforcer / hole puncher (EPRHP)
- Publication number 20060171773
- Publication date Aug 3, 2006
- Luyu Yang
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER