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For the Inventor, By the Inventor

Roanoke, VA, United States of America

Kayser Ventures, Ltd.


USPTO Granted Patents = 3

Trademarks = 1

Forward Citations = 175

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2 inventors (with patents filed for the assignee):

goldMedal Kenneth W Kayser (3 out of 12 patents)

silverMedal W Richard Frederick (2 out of 24 patents)


3 patents:

1. 5790390 - Power supply with reduced EMI (1998-08-04),
2. 5736967 - Article-information display system using electronically controlled tags (1998-04-07),
3. 5537126 - Article-information display system using electronically controlled tags (1996-07-16),
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USPTO Data Jan 1 1976 - Sep 29 2026

3 Patents

#29 in Roanoke, VA

#1,328 in Virginia

#73,766 in US

Roanoke, VA (US)
Roanoke, VA, United States of America

Kayser Ventures, Ltd.

Forward Citations = 175

2 inventors:

goldMedal Kenneth W Kayser (3 out of 12 patents)

silverMedal W Richard Frederick (2 out of 24 patents)

Please report any incorrect information to [email protected]
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