For the Inventor, By the Inventor

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Minneapolis, MN, United States of America

Hestia Heating Products, Inc.

USPTO Granted Patents = 3

Forward Citations = 18

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4 inventors (with patents filed for the assignee):

Eric W Nelson (3 out of 8 patents)

Marion L Mast (2 out of 2 patents)

William D Orvis (1 out of 1 patent)

4. John L Madsen (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 8210110 - Apparatus for combustion of biofuels (2012-07-03),

2. 7721661 - Apparatus for combustion of biofuels (2010-05-25),

3. 7457689 - Process control methodologies for biofuel appliance (2008-11-25),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#419 in Minneapolis, MN

#1,944 in Minnesota

#71,953 in US

Minneapolis, MN, United States of America

Hestia Heating Products, Inc.

Forward Citations = 18

4 inventors:

Eric W Nelson (3 out of 8 patents)

Marion L Mast (2 out of 2 patents)

William D Orvis (1 out of 1 patent)

4. John L Madsen (1 out of 1 patent)

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