For the Inventor, By the Inventor

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St. Louis, MO, United States of America

Ethyl Petroleum Additives, Inc.

USPTO Granted Patents = 98

% Expired Patents = 2.0

Trademarks = 10

Forward Citations = 1,477

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70 inventors (with patents filed for the assignee):

Andrew G Papay (12 out of 29 patents)

William Y Lam (10 out of 30 patents)

Edmund F Perozzi (10 out of 13 patents)

4. Rolfe J Hartley (8 out of 14 patents)

5. Paul G Griffin (7 out of 8 patents)

6. David K Walters (7 out of 9 patents)

7. Helen T Ryan (5 out of 13 patents)

8. David J DeGonia (5 out of 5 patents)

9. Lawrence J Cunningham (5 out of 12 patents)

10. Dennis J Malfer (4 out of 22 patents)

11. Abbas Kadkhodayan (4 out of 18 patents)

12. Armgard K Everett (4 out of 4 patents)

13. John G Bostick (4 out of 4 patents)

14. Roger Scattergood (4 out of 4 patents)

15. Graeme M Wallace (4 out of 4 patents)

Core Competencies:

Mixed Metal Catalyst

Lubricant Compositions

Fuel Additives

Hydrocarbonaceous Fuels

Dispersants

Emissions Reduction

Biodegradable Lubricants

Friction Modifiers

Automatic Transmission Fluids

Zinc Additives

Diesel Fuel Compositions

Ashless Dispersants

98 patents: Sort by Forward Citations

1. 7862628 - Mixed metal catalyst additive and method for use in hydrocarbonaceous fuel combustion system (2011-01-04),

2. 7276094 - Mixed metal catalyst additive and method for use in hydrocarbonaceous fuel combustion system (2007-10-02),

3. 6255263 - Lubricant compositions exhibiting improved demulse performance (2001-07-03),

4. 6238446 - Unleaded aviation gasoline (2001-05-29),

5. 6187064 - Unleaded aviation gasoline (2001-02-13),

6. 6184186 - Lubricating compositions (2001-02-06),

7. 6086645 - Fuel additives and compositions (2000-07-11),

8. 6001141 - Fuel additive (1999-12-14),

9. 5944858 - Hydrocarbonaceous fuel compositions and additives therefor (1999-08-31),

10. 5942470 - Lubricant compositions (1999-08-24),

11. 5919276 - Use of mixed alkaline earth-alkali metal systems as emissions reducing (1999-07-06),

12. 5817605 - Automatic transmission and wet brake fluids and additive package therefor (1998-10-06),

13. 5789353 - Dispersants (1998-08-04),

14. 5767045 - Hydraulic fluids (1998-06-16),

15. 5700764 - Lubricant compositions (1997-12-23),

Company Overview

Ethyl Petroleum Additives, Inc., based in St. Louis, MO, specializes in the development and manufacturing of advanced fuel additives. The company focuses on enhancing the performance of hydrocarbonaceous fuels through innovative solutions such as mixed metal catalysts, lubricant compositions, and dispersants. Ethyl is committed to addressing emissions reduction and promoting sustainability with products like biodegradable lubricants and friction modifiers, positioning itself as a leader in the fuel additives sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

98 Patents

#29 in St. Louis, MO

#49 in Missouri

#3,858 in US

#7,925 in the World

St. Louis, MO, United States of America

Ethyl Petroleum Additives, Inc.

Forward Citations = 1,477

70 inventors:

Andrew G Papay (12 out of 29 patents)

William Y Lam (10 out of 30 patents)

Edmund F Perozzi (10 out of 13 patents)

4. Rolfe J Hartley (8 out of 14 patents)

5. Paul G Griffin (7 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ethyl Petroleum Additives, Inc.. Retrieved from https://idiyas.com/company/ethyl-petroleum-additives

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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