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For the Inventor, By the Inventor

Sugar Land, TX, United States of America

Kalsi Engineering, Inc.


USPTO Granted Patents = 46

% Expired Patents = 8.7



Trademarks = 3

Forward Citations = 1,345

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17 inventors (with patents filed for the assignee):

goldMedal Lannie Laroy Dietle (36 out of 40 patents)

silverMedal Manmohan Singh Kalsi (21 out of 36 patents)

bronzeMedal John Erick Schroeder (12 out of 12 patents)

4.  Jeffrey D Gobeli (7 out of 9 patents)

5.  Aaron Paul Richie (7 out of 7 patents)

6.  Zachary W Leutwyler (5 out of 5 patents)

7.  Patricio Daniel Alvarez (4 out of 5 patents)

8.  William T Conroy (4 out of 4 patents)

9.  Mital Chandrakant Mistry (3 out of 3 patents)

10.  Jaw-Kuang Wang (2 out of 2 patents)

11.  Aaron Paul Ritchie (1 out of 1 patent)

12.  Victor Garcia, Jr (1 out of 1 patent)

13.  Rome Richardson (1 out of 1 patent)

14.  Dezso Somogyi (1 out of 1 patent)

15.  Brian O James (1 out of 22 patents)


Core Competencies:
Hydrodynamic Rotary Seal
Dynamic Backup Ring
Flow Conditioning Assembly
High Pressure Sealing
Thermal Control Valve
Rotary Shaft Seal
Flexible Wedge Gate Valve
Composite Seal
Skew Resistant Seal
Pressure Balanced Seal
Miniature Valve
Lubricated Rotary Seal

46 patents:

1. 12693690 - Passive modulating design for fast responding control valves for high pressure gas applications (2026-07-28),
2. 12442449 - Bidirectional hydrodynamic rotary seal (2025-10-14),
3. 12271214 - Miniature passive thermal control valve for mixing or splitting single-phase fluid with adjustable thermal actuator (2025-04-08),
4. 11989043 - Miniature passive thermal control valve for mixing or splitting single-phase fluid with adjustable thermal actuator (2024-05-21),
5. 11668399 - Rotary seal and method of making same (2023-06-06),
6. 11300208 - Seal assembly with anti-rotation and stability features (2022-04-12),
7. 11261891 - Flow conditioning assembly (2022-03-01),
8. 11085470 - Flow conditioning assembly (2021-08-10),
9. 10435981 - Seal arrangement for rotating equipment (2019-10-08),
10. 10330203 - High pressure dynamic sealing device (2019-06-25),
11. 10302200 - Seal for bi-directional rotation and pressure (2019-05-28),
12. 9845879 - High pressure dynamic sealing arrangement (2017-12-19),
13. 9429238 - Dynamic backup ring assembly (2016-08-30),
14. 9316319 - Pressure-balanced floating seal housing assembly and method (2016-04-19),
15. 9121504 - Rotary seal with improved film distribution (2015-09-01),
Kalsi Engineering, Inc., based in Sugar Land, Texas, specializes in the development and manufacturing of advanced sealing solutions for various industries. The company focuses on hydrodynamic rotary seals, dynamic sealing devices, and pressure-balanced floating seals, which are critical for ensuring reliability in high-pressure environments. Kalsi Engineering's innovative products, including rotary shaft sealing assemblies and thermal control valves, are designed to enhance performance and efficiency in applications requiring robust sealing technologies.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

46 Patents

#9 in Sugar Land, TX

#417 in Texas

#7,585 in US

#15,085 in the World

Sugar Land, TX (US)
Sugar Land, TX, United States of America

Kalsi Engineering, Inc.

Forward Citations = 1,345

17 inventors:

goldMedal Lannie Laroy Dietle (36 out of 40 patents)

silverMedal Manmohan Singh Kalsi (21 out of 36 patents)

bronzeMedal John Erick Schroeder (12 out of 12 patents)

4.  Jeffrey D Gobeli (7 out of 9 patents)

5.  Aaron Paul Richie (7 out of 7 patents)

Please report any incorrect information to [email protected]
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