Growing community of inventors

West Bend, WI, United States of America

Tandrea Lea Sperfslage

Average Co-Inventor Count = 2.21

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 = 56

Tandrea Lea SperfslageBrian D Neeley (2 patents)Tandrea Lea SperfslageKenneth R Breitenstein (2 patents)Tandrea Lea SperfslageStephen C Price (1 patent)Tandrea Lea SperfslageRobert B Carlson (1 patent)Tandrea Lea SperfslageBrian D Grewe (1 patent)Tandrea Lea SperfslageThomas D Blum (1 patent)Tandrea Lea SperfslageDavid Tiedeman (1 patent)Tandrea Lea SperfslageWilliam Lowe (1 patent)Tandrea Lea SperfslageTandrea Lea Sperfslage (4 patents)Brian D NeeleyBrian D Neeley (18 patents)Kenneth R BreitensteinKenneth R Breitenstein (4 patents)Stephen C PriceStephen C Price (14 patents)Robert B CarlsonRobert B Carlson (5 patents)Brian D GreweBrian D Grewe (4 patents)Thomas D BlumThomas D Blum (3 patents)David TiedemanDavid Tiedeman (2 patents)William LoweWilliam Lowe (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Briggs & Stratton, LLC (3 from 778 patents)

2. Wacker Neuson Production Americas LLC (1 from 25 patents)


4 patents:

1. D685395 - Handle mount

2. D628598 - Walk behind mower

3. D624562 - Walk behind mower engine shroud

4. 7739870 - Hydrostatic transmission

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as of
12/5/2025
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