Growing community of inventors

Randolph, NJ, United States of America

David Spence

Average Co-Inventor Count = 3.00

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 = 4

David Spence ↔ Sunil Shashikant Panditrao (1 patent)David Spence ↔ Kerman Dukandar (1 patent)David SpenceDavid Spence (1 patent)Sunil Shashikant PanditraoSunil Shashikant Panditrao (7 patents)Kerman DukandarKerman Dukandar (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Lummus Technology Inc. (1 from 290 patents)


1 patent:

1. 8258357 - Production of propylene from butane

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as of
12/9/2025
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