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Valley Forge, PA, United States of America

Pq Corporation

USPTO Granted Patents = 112

% Expired Patents = 5.4

CIPO Patents = 6

EPO Patents = 8

Trademarks = 30

Forward Citations = 1,249

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122 inventors (with patents filed for the assignee):

Elliot P Hertzenberg (14 out of 17 patents)

William Edward Cormier (13 out of 15 patents)

Hong-Xin Li (12 out of 33 patents)

4. Bjorn Moden (12 out of 14 patents)

5. Yatao Rachel Hu (8 out of 12 patents)

6. David Allen Cooper (7 out of 12 patents)

7. Howard S Sherry (7 out of 18 patents)

8. Michael James McDonald (6 out of 10 patents)

9. Raymond P Denkewicz, Jr (6 out of 6 patents)

10. Flavio Ernesto Ribeiro (5 out of 8 patents)

11. Bruce W Sands (5 out of 8 patents)

12. Neil Miller (4 out of 4 patents)

13. Reinhard H Witt (4 out of 6 patents)

14. John R McLaughlin (4 out of 10 patents)

15. Thomas J Pullukat (4 out of 4 patents)

Core Competencies:

Zeolite

Catalysts

Silica

Hydrothermal Stability

Oil Recovery

Chill Haze Prevention

Granules

Composite Materials

Polymerization

Adsorbents

Crystalline Materials

112 patents: Sort by Forward Citations

1. 11786864 - Metal-containing zeolite beta for NOreduction and methods of making the same (2023-10-17),

2. 11773234 - Silica gel as reinforcement agent for rubber compounds (2023-10-03),

3. 11732065 - Chromium-on-silica catalysts and methods of making the same (2023-08-22),

4. 11673835 - Sustainable two-component annular grout composition and method for use with a tunnel-boring machine (2023-06-13),

5. 11499083 - Method for plugging and abandoning oil and gas wells (2022-11-15),

6. 11103857 - Production of hydrothermally stable CHA zeolites (2021-08-31),

7. 11040337 - Low-silica chabazite zeolites with high acidity (2021-06-22),

8. 11027983 - Chabazite zeolite synthesis with organic templates (2021-06-08),

9. 10384162 - High silica chabazite for selective catalytic reduction, methods of making and using same (2019-08-20),

10. 10377638 - Stabilized microporous crystalline material, the method of making the same, and the use for selective catalytic reduction of NO (2019-08-13),

11. 10100602 - Self-pressurizing soluble alkali silicate for use in sealing subterranean spaces (2018-10-16),

12. 9981256 - [object Object] (2018-05-29),

13. 9827560 - Small crystal ferrierite and method of making the same (2017-11-28),

14. 9517458 - [object Object] (2016-12-13),

15. 9458023 - Use of aqueous alkali aluminosilicate for profile modification, water control and stabilization (2016-10-04),

Pq Corporation, headquartered in Valley Forge, PA, specializes in zeolite technology, focusing on the development and manufacturing of advanced materials that enhance various industrial processes. The company is recognized for its expertise in catalysts, silica, and composite materials, which play crucial roles in applications such as oil recovery and chill haze prevention. Pq Corporation's commitment to innovation in hydrothermal stability and granule production positions it as a leader in the field, serving diverse markets globally.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

112 Patents

#1 in Valley Forge, PA

#133 in Pennsylvania

#3,427 in US

#7,051 in the World

Valley Forge, PA, United States of America

Pq Corporation

Forward Citations = 1,249

122 inventors:

Elliot P Hertzenberg (14 out of 17 patents)

William Edward Cormier (13 out of 15 patents)

Hong-Xin Li (12 out of 33 patents)

4. Bjorn Moden (12 out of 14 patents)

5. Yatao Rachel Hu (8 out of 12 patents)

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