Growing community of inventors

Maumee, OH, United States of America

Harold P Sponseller

Average Co-Inventor Count = 1.58

ph-index = 4

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 91

Harold P SponsellerNorman B Lichtenberg (1 patent)Harold P SponsellerDale L Byerly (1 patent)Harold P SponsellerAllen F Simon (1 patent)Harold P SponsellerKenneth W Chaloupek (1 patent)Harold P SponsellerJeffrey E Totten (1 patent)Harold P SponsellerHarold P Sponseller (5 patents)Norman B LichtenbergNorman B Lichtenberg (7 patents)Dale L ByerlyDale L Byerly (3 patents)Allen F SimonAllen F Simon (1 patent)Kenneth W ChaloupekKenneth W Chaloupek (1 patent)Jeffrey E TottenJeffrey E Totten (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (2 from 832,812 patents)

2. Babcock Industries Inc. (1 from 33 patents)

3. Seaman Corporation (1 from 14 patents)

4. Harold Sponseller and Associates, Inc. (1 from 1 patent)


5 patents:

1. 6234871 - Method and apparatus for removing a thin coating from a fabric

2. 5159233 - Spark plug and method for assembling a spark plug

3. 4854185 - Manually operated and locked conduit length adjuster system

4. 4740129 - Slice separating and feeding apparatus and method

5. 4425802 - Apparatus and method for testing tube welds

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as of
12/19/2025
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