Hartlep; Tianyan Xie
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hartlep; Tianyan Xie.The latest application filed is for "security paper authentication system with dual instant color".
- Hartlep; Tianyan Xie - Appleton WI
| Patent | Date |
|---|---|
| Security paper authentication system with dual instant color Grant 7,648,842 - Hartlep January 19, 2 | 2010-01-19 |
| Security paper authentication system with dual instant color App 20080248948 - Hartlep; Tianyan Xie | 2008-10-09 |
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