For the Inventor, By the Inventor

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Saint Paul, MN, United States of America

Deltec Systems, Inc.

USPTO Granted Patents = 3

Trademarks = 1

Forward Citations = 657

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4 inventors (with patents filed for the assignee):

Harvey F Berg (3 out of 4 patents)

Lyle Peterson (2 out of 2 patents)

James E Leslie (2 out of 2 patents)

4. Phong Doan (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 4650469 - Drug delivery system (1987-03-17),

2. 4565542 - Locking mechanism for a drug delivery system (1986-01-21),

3. 4559038 - Drug delivery system (1985-12-17),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#211 in Saint Paul, MN

#1,944 in Minnesota

#71,949 in US

Saint Paul, MN, United States of America

Deltec Systems, Inc.

Forward Citations = 657

4 inventors:

Harvey F Berg (3 out of 4 patents)

Lyle Peterson (2 out of 2 patents)

James E Leslie (2 out of 2 patents)

4. Phong Doan (1 out of 1 patent)

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