Minneapolis, MN, United States of America

American Defibrator, Inc.

Calculating rank

USPTO Granted Patents = 3

Forward Citations = 33

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7 inventors (with patents filed for the assignee):

Rolf B Reinhall (1 out of 24 patents)

Johan L Michelsen (1 out of 1 patent)

Ture Eric Kollberg (1 out of 1 patent)

4. Ake Sandstron (1 out of 1 patent)

5. Anders Mukvist (1 out of 1 patent)

6. Lars Elander (1 out of 1 patent)

7. Inge J Johansson (1 out of 3 patents)

3 patents: Sort by Forward Citations

1. 4235665 - Method and apparatus for producing fiber pulp in a steam pressurized (1980-11-25),

2. 4074803 - Screw conveyor having stopper bar means (1978-02-21),

3. 4039373 - Static discharge device and method for fiber discharge from a (1977-08-02),

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USPTO Data Jan 1 1976 - Oct 27 2026

3 Patents

#440 in Minneapolis, MN

#1,983 in Minnesota

#73,929 in US

Minneapolis, MN, United States of America

American Defibrator, Inc.

Forward Citations = 33

7 inventors:

Rolf B Reinhall (1 out of 24 patents)

Johan L Michelsen (1 out of 1 patent)

Ture Eric Kollberg (1 out of 1 patent)

4. Ake Sandstron (1 out of 1 patent)

5. Anders Mukvist (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: American Defibrator, Inc.. Retrieved from https://idiyas.com/company/american-defibrator

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]