Growing community of inventors

Zeeland, MI, United States of America

James E Roelofs

Average Co-Inventor Count = 6.00

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 = 5

James E Roelofs ↔ Wesley G Koops (1 patent)James E Roelofs ↔ David J Spyker (1 patent)James E Roelofs ↔ Daniel De Haan (1 patent)James E Roelofs ↔ David P McLeod (1 patent)James E Roelofs ↔ Greg De Haan (1 patent)James E RoelofsJames E Roelofs (1 patent)Wesley G KoopsWesley G Koops (5 patents)David J SpykerDavid J Spyker (5 patents)Daniel De HaanDaniel De Haan (3 patents)David P McLeodDavid P McLeod (3 patents)Greg De HaanGreg De Haan (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Jwi Ltd. (1 from 55 patents)


1 patent:

1. 5456022 - Batch-type sludge drier

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as of
1/13/2026
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