Growing community of inventors

Indianapolis, IN, United States of America

Wilbur Allen Spraker, Jr

Average Co-Inventor Count = 2.40

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 = 30

Wilbur Allen Spraker, Jr ↔ Allan C Harper (1 patent)Wilbur Allen Spraker, Jr ↔ Robert Lynn Stewart (1 patent)Wilbur Allen Spraker, Jr ↔ Arthur H Mains (1 patent)Wilbur Allen Spraker, JrWilbur Allen Spraker, Jr (2 patents)Allan C HarperAllan C Harper (3 patents)Robert Lynn StewartRobert Lynn Stewart (1 patent)Arthur H MainsArthur H Mains (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Wallace-murray Corporation (2 from 78 patents)


2 patents:

1. 4384821 - Free floating divider wall turbine housing

2. 3994620 - Variable exducer turbine control

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idiyas.com
as of
12/14/2025
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