Marta E. Leon

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Seattle, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for teaching and testing musical pitch
- Patent number 8,987,572
- Issue date Mar 24, 2015
- Generategy LLC
- Hirofumi Shimizu
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
System and Method for Teaching and Testing Musical Pitch
- Publication number 20130167707
- Publication date Jul 4, 2013
- HeadSprout, Inc.
- Hirofumi Shimizu
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
TEACHING READING COMPREHENSION
- Publication number 20100021871
- Publication date Jan 28, 2010
- Terrence V. Layng
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS