Joseph P. Sejnowski

Follow

Person

Cumberland, RI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Electronic learning apparatus with self-adjusting level of difficulty
- Patent number 5,681,170
- Issue date Oct 28, 1997
- Hasbro, Inc.
- Frederick M. Rieber
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Ball tossing device
- Patent number 5,590,876
- Issue date Jan 7, 1997
- Hasbro, Inc.
- Joseph P. Sejnowski
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Water toy
- Patent number 5,403,018
- Issue date Apr 4, 1995
- Playskool, Inc.
- Joseph P. Sejnowski
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Descending ball game apparatus
- Patent number 5,312,285
- Issue date May 17, 1994
- Playskool, Inc.
- Frederick M. Rieber
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
In line roller skate assembly having training wheels
- Patent number 5,295,701
- Issue date Mar 22, 1994
- Playskool, Inc.
- Frederick M. Reiber
- A63 - SPORTS GAMES AMUSEMENTS