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For the Inventor, By the Inventor

East Walpole, MA, United States of America

Hollingsworth & Vose Company


USPTO Granted Patents = 139



Trademarks = 29

Forward Citations = 1,675

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89 inventors (with patents filed for the assignee):

goldMedal David T Healey (21 out of 21 patents)

silverMedal Douglas M Guimond (20 out of 20 patents)

bronzeMedal Sudhakar Jaganathan (17 out of 17 patents)

4.  John A Wertz (17 out of 17 patents)

5.  Maxim Silin (15 out of 15 patents)

6.  Bruce Smith (12 out of 12 patents)

7.  Akshay Ashirgade (10 out of 10 patents)

8.  Randall B Keisler (10 out of 10 patents)

9.  Nagendra Anantharamaiah (10 out of 10 patents)

10.  Zhiping Jiang (10 out of 31 patents)

11.  Carrie Liu (9 out of 9 patents)

12.  Mark A Gallimore (9 out of 9 patents)

13.  Richard E Gahan (9 out of 14 patents)

14.  Nicolas Clement (8 out of 8 patents)

15.  Milind Godsay (8 out of 8 patents)


Core Competencies:
Electret-Containing Filter Media
Multi-Layered Filtration Media
Fibrillated Fibers
Battery Components
Coalescing Filter Media
Medical Protective Clothing
Fine Fiber Filter Media
Surface Modified Filter Media
Flame Retardant Fibers
Hydraulic Applications
Embossed Separators
Irregular Structure Filter Media

139 patents:

1. 12420221 - Multi-layered electret-containing filtration media (2025-09-23),
2. 12401090 - Embossed separators (2025-08-26),
3. 12343666 - Filter media including out-of-plane solid elements, methods of forming them, and uses thereof (2025-07-01),
4. 12274968 - Filter media comprising a pre-filter layer (2025-04-14),
5. 12220659 - Electret-containing filter media (2025-02-11),
6. 12070705 - Filter media including adhesives and/or oleophobic properties (2024-08-27),
7. 12053728 - Filter media with irregular structure and/or reversibly stretchable layers (2024-08-06),
8. 12036496 - Filter media with irregular structure (2024-07-16),
9. 12017169 - Filter media including adhesives (2024-06-25),
10. 12011686 - Filter media comprising a pre-filter layer (2024-06-18),
11. 11890561 - Filter media having a fine pore size distribution (2024-02-06),
12. 11819790 - Filter media including adhesives and/or oleophobic properties (2023-11-21),
13. 11819789 - Stable filter media including nanofibers (2023-11-21),
14. 11804634 - Battery components comprising fibers (2023-10-31),
15. 11738295 - Filter media including flame retardant fibers (2023-08-29),
Hollingsworth & Vose Company is a global leader in the production of advanced materials for high-performing filtration, battery separator, and industrial applications. With a history dating back to 1843, the company offers a broad range of products like air and liquid filtration media, battery separators, engine and industrial filtration media, as well as advanced materials for industrial applications. Hollingsworth & Vose serves customers across various industries including automotive, industrial, medical, and residential. Their commitment to technological innovation and sustainability enables them to deliver exceptional performance and value to their customers.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

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139 Patents

#1 in East Walpole, MA

#146 in Massachusetts

#2,697 in US

#5,664 in the World

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East Walpole, MA, United States of America

Hollingsworth & Vose Company

Forward Citations = 1,675

89 inventors:

goldMedal David T Healey (21 out of 21 patents)

silverMedal Douglas M Guimond (20 out of 20 patents)

bronzeMedal Sudhakar Jaganathan (17 out of 17 patents)

4.  John A Wertz (17 out of 17 patents)

5.  Maxim Silin (15 out of 15 patents)

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