Harold D. Pierce

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Woodland Hills, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Interactive audio visual work
- Patent number 5,453,013
- Issue date Sep 26, 1995
- Western Publishing Co., Inc.
- Zeb Billings
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Low energy animated time piece
- Patent number 5,440,526
- Issue date Aug 8, 1995
- Sounds Fun, Inc.
- Harold D. Pierce
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Electronic book
- Patent number D349923
- Issue date Aug 23, 1994
- Western Publishing Company, Inc.
- Zeb Billings
- D19 - Office supplies
Information Patent Grant
Interactive audio visual work
- Patent number 5,209,665
- Issue date May 11, 1993
- Sight & Sound Incorporated
- Zeb Billings
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Low energy animated time piece
- Patent number 5,197,044
- Issue date Mar 23, 1993
- Sounds Fun, Inc.
- Harold D. Pierce
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Interactive audio-visual puzzle
- Patent number 5,087,043
- Issue date Feb 11, 1992
- Sight and Sound Inc.
- Zeb Billings
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS