For the Inventor, By the Inventor

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Trumbull, CT, United States of America

Ledu Corporation

USPTO Granted Patents = 3

Forward Citations = 25

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4 inventors (with patents filed for the assignee):

Irving Schaffer (1 out of 12 patents)

Willfred Goldschmidt (1 out of 24 patents)

John Stromberg (1 out of 2 patents)

4. Ralf Andersson (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. D316310 - Lamp reflector (1991-04-16),

2. D284310 - Lamp for a work station (1986-06-17),

3. D276940 - Magnifier lamp (1984-12-25),

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USPTO Data Jan 1 1976 - Jan 13 2026

3 Patents

#17 in Trumbull, CT

#1,348 in Connecticut

#72,122 in US

Trumbull, CT, United States of America

Ledu Corporation

Forward Citations = 25

4 inventors:

Irving Schaffer (1 out of 12 patents)

Willfred Goldschmidt (1 out of 24 patents)

John Stromberg (1 out of 2 patents)

4. Ralf Andersson (1 out of 1 patent)

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