Growing community of inventors

Milwaukee, WI, United States of America

Daniel J Plankenhorn

Average Co-Inventor Count = 1.50

ph-index = 2

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 = 51

Daniel J PlankenhornStephen B Leonard (1 patent)Daniel J PlankenhornRalph W Oakeson (1 patent)Daniel J PlankenhornDaniel J Plankenhorn (2 patents)Stephen B LeonardStephen B Leonard (51 patents)Ralph W OakesonRalph W Oakeson (11 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. S. C. Johnson Son, Inc. (2 from 2,355 patents)


2 patents:

1. 7059544 - Vortex generator for dispensing actives

2. 6859976 - Cleaning apparatus with continuous action wiping and sweeping

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as of
1/22/2026
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