Duane M. Sider

Follow

Person

Harrisonburg, VA, US

People

Patents Grantslast 30 patents

Information Patent Grant
System and method for language instruction
- Patent number 7,524,191
- Issue date Apr 28, 2009
- Rosetta Stone Ltd.
- Jack A. Marmorstein
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
System and method for language instruction
- Publication number 20050048449
- Publication date Mar 3, 2005
- Jack A. Marmorstein
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS