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John R. Devecka
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Clifton, NJ, US
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Patents Grants
last 30 patents
Information
Patent Grant
Methods and apparatus for art supply useage compliance
Patent number
8,860,548
Issue date
Oct 14, 2014
Devecka Enterprises, Inc.
John R. Devecka
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Methods and apparatus for providing an interactive musical game
Patent number
6,835,887
Issue date
Dec 28, 2004
John R. Devecka
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Method and apparatus for simulating a jam session and instructing a...
Patent number
6,369,313
Issue date
Apr 9, 2002
John R. Devecka
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Methods and apparatus for providing an interactive musical game
Patent number
6,268,557
Issue date
Jul 31, 2001
John R. Devecka
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Method and apparatus for simulating a jam session and instructing a...
Patent number
6,018,121
Issue date
Jan 25, 2000
John R. Devecka
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Method and apparatus for simulating a jam session and instructing a...
Patent number
5,739,457
Issue date
Apr 14, 1998
John R. Devecka
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Patents Applications
last 30 patents
Information
Patent Application
Methods and apparatus for providing an interactive musical game
Publication number
20020088337
Publication date
Jul 11, 2002
John R. Devecka
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
Method and apparatus for simulating a jam session and instructing a...
Publication number
20010008100
Publication date
Jul 19, 2001
John R. Devecka
G10 - MUSICAL INSTRUMENTS ACOUSTICS