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For the Inventor, By the Inventor

Los Angeles, CA, United States of America

Filtrol Corporation


USPTO Granted Patents = 41


Forward Citations = 357

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21 inventors (with patents filed for the assignee):

goldMedal Dennis N Stamires (25 out of 93 patents)

silverMedal Hamid Abdel Alafandi (23 out of 23 patents)

bronzeMedal John C Lim (8 out of 9 patents)

4.  Michael F Brady (5 out of 37 patents)

5.  Julius Scherzer (4 out of 14 patents)

6.  Masami Kayamoto (3 out of 4 patents)

7.  Geoffrey R Wilson (3 out of 4 patents)

8.  Anh-Thu Liu (2 out of 2 patents)

9.  Mark Conrad Jones (1 out of 29 patents)

10.  Robert B Secor (1 out of 1 patent)

11.  Robert A Van Nordstrand (1 out of 1 patent)

12.  David R Pegg (1 out of 1 patent)

13.  Hamid Alifandi (1 out of 1 patent)

14.  Dennis R Taylor (1 out of 2 patents)

15.  Yih-Yau Sun (1 out of 1 patent)


Core Competencies:
Hydrodesulfurization Catalyst
Zeolite Catalysts
Silica-Alumina Gels
Pseudoboehmite Production
Attrition Resistant Catalysts
Faujasite Zeolites
Hydroprocessing Catalysts
Cracking Catalysts
Alumina Matrix
Crystalline Aluminosilicates
Ammoniated Silica-Alumina Gel
Catalyst Support Structures

41 patents:

1. 4388222 - Ni/Co Mo P On titania-alumina hydrodesulfurizing catalyst (1983-06-14),
2. 4362652 - Cracking catalysts containing silica-alumina gels (1982-12-07),
3. 4356113 - Substrates with calibrated pore size and catalysts employing the same (1982-10-26),
4. 4347164 - Mono- and poly-metallic supported catalysts (1982-08-31),
5. 4333857 - Attrition resistant zeolite containing catalyst (1982-06-08),
6. 4332782 - Method of producing pseudoboehmite (1982-06-01),
7. 4325847 - Use of additional alumina for extra zeolite stability in FCC catalyst (1982-04-20),
8. 4325845 - Zeolite catalysts and method of producing the same (1982-04-20),
9. 4313923 - Method of producing pseudoboehmites (1982-02-02),
10. 4310441 - Large pore silica-alumina gels and method of producing the same (1982-01-12),
11. 4297325 - Method of producing pseudoboehmite from aluminum salt solutions (1981-10-27),
12. 4269815 - Method of exchanging sodium zeolite (1981-05-26),
13. 4264474 - Ammoniated silica-alumina gel and catalyst containing the same and (1981-04-28),
14. 4259210 - Crystalline alumino silicate-silica-alumina gel hydrocarbon conversion (1981-03-31),
15. 4253989 - Zeolitic catalyst and method of producing same (1981-03-03),
Filtrol Corporation is a leading manufacturer of industrial filtration products. With over 50 years of experience, we provide innovative solutions for fluid and air filtration needs of various industries. Our comprehensive product range includes filter bags, cartridges, housings, and systems designed to ensure efficient and reliable filtration. We strive to deliver exceptional quality products that meet our customers' specific requirements. Visit our website to learn more about our offerings and how we can assist you with your filtration needs.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 16 2025

41 Patents

#36 in Los Angeles, CA

#1,927 in California

#8,160 in US

#16,204 in the World

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Los Angeles, CA, United States of America

Filtrol Corporation

Forward Citations = 357

21 inventors:

goldMedal Dennis N Stamires (25 out of 93 patents)

silverMedal Hamid Abdel Alafandi (23 out of 23 patents)

bronzeMedal John C Lim (8 out of 9 patents)

4.  Michael F Brady (5 out of 37 patents)

5.  Julius Scherzer (4 out of 14 patents)

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