For the Inventor, By the Inventor

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Kulpsville, PA, United States of America

Stein Seal Company

USPTO Granted Patents = 52

% Expired Patents = 5.8

EPO Patents = 15

Trademarks = 5

Forward Citations = 801

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16 inventors (with patents filed for the assignee):

Glenn M Garrison (36 out of 36 patents)

Thurai Manik Vasagar (14 out of 14 patents)

Alan D McNickle (11 out of 11 patents)

4. Diane R McNickle, Legal Representative (5 out of 5 patents)

5. Mark C Holder (3 out of 3 patents)

6. Mingfong Hwang (2 out of 6 patents)

7. Adam N Pope (2 out of 15 patents)

8. Saji Pillai (1 out of 3 patents)

9. Diane R McNickle (1 out of 1 patent)

10. Brian Roche (1 out of 1 patent)

11. Hiren Patel (1 out of 1 patent)

12. John Eppehimer (1 out of 1 patent)

13. Manik Vasagar (1 out of 1 patent)

14. Mark Sanville (1 out of 1 patent)

15. Richard A Jones (1 out of 4 patents)

Core Competencies:

Hydrodynamic Seals

Circumferential Assembly

Intershaft Seal

Back-to-Back Seal

Adjustable Seating Forces

Pressure-Balanced Carrier

Slurry Seal

Air Riding Seal

Carbon Hydrostatic Face Seal

High-Pressure Film-Riding Seals

Radial Flow Seals

Windback Device

52 patents: Sort by Forward Citations

1. 12590638 - Circumferential sealing assembly with duct-fed hydrodynamic grooves (2026-03-31),

2. 12044317 - Circumferential sealing assembly with duct-fed hydrodynamic grooves (2024-07-23),

3. 11739653 - Circumferential seal assembly with adjustable seating forces (2023-08-29),

4. 11732753 - Circumferential seal assembly with multi-axis stepped grooves (2023-08-22),

5. 11725588 - Intershaft seal assembly with pressure-balanced translatable carrier (2023-08-15),

6. 11686346 - Circumferential seal assembly with multi-axis stepped grooves (2023-06-27),

7. 11686206 - Circumferential seal assembly with adjustable seating forces (2023-06-27),

8. 11635146 - Circumferential sealing assembly with duct-fed hydrodynamic grooves (2023-04-25),

9. 11359669 - Circumferential back-to-back seal assembly with bifurcated flow (2022-06-14),

10. 11333197 - Circumferential seal assembly with multi-axis stepped grooves (2022-05-17),

11. 11168573 - Circumferential seal assembly with adjustable seating forces (2021-11-09),

12. 10948014 - Intershaft seal assembly with multi-axis stepped grooves (2021-03-16),

13. 10941780 - Slurry seal assembly (2021-03-09),

14. 10711839 - Circumferential seal with bifurcated flow along multi-axis stepped grooves (2020-07-14),

15. 10677247 - Slurry seal assembly (2020-06-09),

Company Overview

Stein Seal Company, based in Kulpsville, PA, specializes in the development and manufacturing of advanced hydrodynamic seals. Their expertise encompasses a range of sealing solutions, including circumferential assemblies, intershaft seals, and back-to-back seals, designed to meet the demanding requirements of various industries. The company focuses on innovative technologies such as adjustable seating forces, pressure-balanced carriers, slurry seals, and air riding seals, ensuring optimal performance and reliability in critical applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

52 Patents

#1 in Kulpsville, PA

#251 in Pennsylvania

#6,769 in US

#13,571 in the World

Kulpsville, PA, United States of America

Stein Seal Company

Forward Citations = 801

16 inventors:

Glenn M Garrison (36 out of 36 patents)

Thurai Manik Vasagar (14 out of 14 patents)

Alan D McNickle (11 out of 11 patents)

4. Diane R McNickle, Legal Representative (5 out of 5 patents)

5. Mark C Holder (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Stein Seal Company. Retrieved from https://idiyas.com/company/stein-seal-company

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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