Growing community of inventors

Oakwood, OH, United States of America

John Sparkman

Average Co-Inventor Count = 4.36

ph-index = 1

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 = 28

John SparkmanRobert Mark Zerhusen (2 patents)John SparkmanDavid W Hornbach (1 patent)John SparkmanCharles A Howell (1 patent)John SparkmanJohn V Harmeyer (1 patent)John SparkmanMichael P Bish (1 patent)John SparkmanShelley L Alford (1 patent)John SparkmanNabil Mehdi (1 patent)John SparkmanAndreas Schabbach (1 patent)John SparkmanAndreas Schabbach (0 patent)John SparkmanShelley L Stafford (0 patent)John SparkmanJohn Sparkman (2 patents)Robert Mark ZerhusenRobert Mark Zerhusen (173 patents)David W HornbachDavid W Hornbach (106 patents)Charles A HowellCharles A Howell (37 patents)John V HarmeyerJohn V Harmeyer (25 patents)Michael P BishMichael P Bish (8 patents)Shelley L AlfordShelley L Alford (1 patent)Nabil MehdiNabil Mehdi (1 patent)Andreas SchabbachAndreas Schabbach (1 patent)Andreas SchabbachAndreas Schabbach (0 patent)Shelley L StaffordShelley L Stafford (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hill-rom Services, Inc. (2 from 1,385 patents)


2 patents:

1. 9687401 - Person support apparatuses having exercise therapy features

2. 8701230 - Core instability system

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as of
12/28/2025
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