For the Inventor, By the Inventor

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Danville, KY, United States of America

Matsushita Floor Care Company

USPTO Granted Patents = 3

Forward Citations = 66

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6 inventors (with patents filed for the assignee):

Gordon R Blackman (1 out of 2 patents)

Milton J Johnson (1 out of 5 patents)

William A Conner (1 out of 1 patent)

4. Seizo Hayashi (1 out of 1 patent)

5. Kunio Funatsu (1 out of 1 patent)

6. Thomas W Granzow (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. D363163 - Tool caddy for a portable appliance (1995-10-17),

2. 5331715 - Two motor upright vacuum cleaner (1994-07-26),

3. 5230121 - Single motor upright vacuum cleaner (1993-07-27),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#2 in Danville, KY

#420 in Kentucky

#71,953 in US

Danville, KY, United States of America

Matsushita Floor Care Company

Forward Citations = 66

6 inventors:

Gordon R Blackman (1 out of 2 patents)

Milton J Johnson (1 out of 5 patents)

William A Conner (1 out of 1 patent)

4. Seizo Hayashi (1 out of 1 patent)

5. Kunio Funatsu (1 out of 1 patent)

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