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For the Inventor, By the Inventor

Valley Forge, PA, United States of America

Pq Corporation


USPTO Granted Patents = 112

% Expired Patents = 5.4



Trademarks = 30

Forward Citations = 1,249

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122 inventors (with patents filed for the assignee):

goldMedal Elliot P Hertzenberg (14 out of 17 patents)

silverMedal William Edward Cormier (13 out of 15 patents)

bronzeMedal 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:

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 is a leading global provider of specialty materials and chemicals. With a history dating back to 1831, PQ has developed a wide range of products used in various industries including coatings, consumer goods, energy, and more. The company is committed to delivering innovative solutions that enhance everyday lives and contribute to sustainable development.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 15 2026

Pq Corporation
112 Patents

#1 in Valley Forge, PA

#133 in Pennsylvania

#3,424 in US

#7,042 in the World

Valley Forge, PA (US)
Valley Forge, PA, United States of America

Pq Corporation

Forward Citations = 1,249

122 inventors:

goldMedal Elliot P Hertzenberg (14 out of 17 patents)

silverMedal William Edward Cormier (13 out of 15 patents)

bronzeMedal 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)

Please report any incorrect information to [email protected]
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