Growing community of inventors

Owasso, OK, United States of America

John A Hamshar

Average Co-Inventor Count = 3.35

ph-index = 8

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 = 765

John A HamsharArmand A Gregoli (8 patents)John A HamsharDaniel P Rimmer (8 patents)John A HamsharAndrew M Olah (6 patents)John A HamsharErdal Yildirim (2 patents)John A HamsharChristopher J Riley (1 patent)John A HamsharRichard S Matyas (1 patent)John A HamsharCharles P Goforth (1 patent)John A HamsharJohn A Hamshar (10 patents)Armand A GregoliArmand A Gregoli (16 patents)Daniel P RimmerDaniel P Rimmer (12 patents)Andrew M OlahAndrew M Olah (20 patents)Erdal YildirimErdal Yildirim (3 patents)Christopher J RileyChristopher J Riley (2 patents)Richard S MatyasRichard S Matyas (1 patent)Charles P GoforthCharles P Goforth (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Canadian Occidental Petroleum Ltd. (8 from 36 patents)

2. Cities Service Company (2 from 109 patents)


10 patents:

1. 5316664 - Process for recovery of hydrocarbons and rejection of sand

2. 5283001 - Process for preparing a water continuous emulsion from heavy crude

3. 5263848 - Preparation of oil-in-aqueous phase emulsion and removing contaminants

4. 5110443 - Converting heavy hydrocarbons into lighter hydrocarbons using ultrasonic

5. 5083613 - Process for producing bitumen

6. 4983319 - Preparation of low-viscosity improved stable crude oil transport

7. 4978365 - Preparation of improved stable crude oil transport emulsions

8. 4966235 - In situ application of high temperature resistant surfactants to produce

9. 4415431 - Integrated oxygasification and hydropyrolysis process for producing

10. 4389388 - Desulfurization of petroleum coke

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
12/7/2025
Loading…