Growing community of inventors

Midlothian, VA, United States of America

David M Human

Average Co-Inventor Count = 4.00

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 = 6

David M HumanJoseph W Roos (3 patents)David M HumanGregory Guinther (3 patents)David M HumanScott D Schwab (2 patents)David M HumanMark Thomas Devlin (1 patent)David M HumanGregory H Guinther (0 patent)David M HumanDavid M Human (3 patents)Joseph W RoosJoseph W Roos (29 patents)Gregory GuintherGregory Guinther (18 patents)Scott D SchwabScott D Schwab (45 patents)Mark Thomas DevlinMark Thomas Devlin (40 patents)Gregory H GuintherGregory H Guinther (0 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Ethyl Corporation (1 from 1,362 patents)

2. Afton Chemical Corporation (1 from 333 patents)

3. Afton Chemical Intangibles LLC (1 from 16 patents)


3 patents:

1. 8006652 - Emissions control system for diesel fuel combustion after treatment system

2. 7332001 - Method of enhancing the operation of diesel fuel combustion systems

3. 6971337 - Emissions control system for diesel fuel combustion after treatment system

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12/26/2025
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