Growing community of inventors

Grand Rapids, MI, United States of America

Francis D Ladner

Average Co-Inventor Count = 2.00

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 = 131

Francis D LadnerJoseph R Branc (2 patents)Francis D LadnerFrancis D Ladner (2 patents)Joseph R BrancJoseph R Branc (23 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Steelcase Inc. (2 from 1,810 patents)


2 patents:

1. 6002855 - 3-D spatial GUI for querying and manipulating an RDMS for order-entry

2. 5847971 - 3-D spatial GUI querying and manipulating an RDMS for order-entry

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as of
12/11/2025
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