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For the Inventor, By the Inventor

San Jose, CA, United States of America

Tula Technology, Inc.


USPTO Granted Patents = 186


Trademarks = 6

Forward Citations = 3,240

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86 inventors (with patents filed for the assignee):

goldMedal Louis Joseph Serrano (88 out of 140 patents)

silverMedal Matthew Aaron Younkins (48 out of 51 patents)

bronzeMedal Shikui Kevin Chen (41 out of 42 patents)

4.  Xin Yuan (30 out of 30 patents)

5.  Mohammad R Pirjaberi (30 out of 32 patents)

6.  Adya S Tripathi (30 out of 53 patents)

7.  Steven E Carlson (29 out of 29 patents)

8.  Mark A Wilcutts (26 out of 26 patents)

9.  Vijay Srinivasan (25 out of 29 patents)

10.  J Steven Kolhouse (16 out of 71 patents)

11.  Mark A Shost (16 out of 34 patents)

12.  John W Parsels (15 out of 16 patents)

13.  Chester Silvestri (15 out of 22 patents)

14.  Joshua P Switkes (13 out of 66 patents)

15.  Masaki Nagashima (13 out of 13 patents)


Core Competencies:
Cylinder Deactivation
Exhaust Gas Recirculation
Lean Burn Engines
Dynamic Skip Fire
Particulate Filter Management
Engine Fault Diagnostics
Torque Smoothing
Combustion Optimization
Emissions Control
Thermal Management
Machine Learning
Noise Reduction

186 patents:

1. 12486814 - Systems and methods for bypassing a compromised engine cylinder (2025-12-02),
2. 12448911 - Systems and methods to minimize exhaust system condensation (2025-10-21),
3. 12209515 - Dynamic cylinder deactivation life factor to modify cylinder deactivation strategy (2025-01-28),
4. 12196144 - Systems and methods for aftertreatment system thermal mangement using cylinder deactivation and/or intake-air throttling (2025-01-14),
5. 11959432 - Exhaust valve failure diagnostics and management (2024-04-16),
6. 11946423 - Recharging management for skipping cylinders (2024-04-02),
7. 11933237 - Systems and methods for particulate filter regeneration with cylinder deactivation (2024-03-19),
8. 11933202 - Dynamic cylinder deactivation life factor to modify cylinder deactivation strategy (2024-03-19),
9. 11920533 - Systems and methods for coordination of skip-fire and aftertreatment heater operation to maintain exhaust gas temperature (2024-03-05),
10. 11859569 - Systems and methods to minimize emissions spikes when reactivating or deactivating a combustion cylinder (2024-01-02),
11. 11859567 - Systems and methods for skip-fire operation control (2024-01-02),
12. 11835004 - Method for determining pilot injection mass (2023-12-05),
13. 11821379 - Non-rotating cylinder pattern selection for equalizing cylinder usage in an internal combustion engine (2023-11-21),
14. 11802519 - Systems and methods for bypassing a compromised engine cylinder via cylinder deactivation (2023-10-31),
15. 11761395 - Dynamic skip fire transitions for fixed CDA engines (2023-09-19),
Tula Technology, Inc. is a leading automotive technology company that specializes in developing and licensing breakthrough engine efficiency and emissions control solutions. Their innovative Dynamic Skip Fire (DSF) technology enables vehicles to achieve significant fuel efficiency improvements while reducing emissions. Tula Technology works with automotive manufacturers and suppliers to integrate their DSF technology into vehicles, delivering a more sustainable and efficient transportation future.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

186 Patents

#66 in San Jose, CA

#485 in California

#2,120 in US

#4,380 in the World

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San Jose, CA, United States of America

Tula Technology, Inc.

Forward Citations = 3,240

86 inventors:

goldMedal Louis Joseph Serrano (88 out of 140 patents)

silverMedal Matthew Aaron Younkins (48 out of 51 patents)

bronzeMedal Shikui Kevin Chen (41 out of 42 patents)

4.  Xin Yuan (30 out of 30 patents)

5.  Mohammad R Pirjaberi (30 out of 32 patents)

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