Barbara E. Plain

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Winnetka, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Toy robot
- Patent number D890861
- Issue date Jul 21, 2020
- Learning Resources, Inc.
- Michael I. Blaustein
- D21 - Games, toys, and sports goods
Information Patent Grant
Educational devices, systems and methods using optical character re...
- Patent number 7,351,062
- Issue date Apr 1, 2008
- Learning Resources, Inc.
- Gayle E. Gordon
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
TOY ROBOT
- Publication number 20210077915
- Publication date Mar 18, 2021
- Learning Resources, Inc.
- Michael I. Blaustein
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Interactive learning system
- Publication number 20080085102
- Publication date Apr 10, 2008
- Michael Alm
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Educational devices, systems and methods using optical character re...
- Publication number 20060188852
- Publication date Aug 24, 2006
- Gayle E. Gordon
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS