Patent assignee · US · COMPANY

Tula eTechnology, Inc.

218Patents
218Active
218Granted
64Portfolio score

Filing activity: Jan 16, 2009 → Apr 24, 2024 · 7 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8099224B2 Internal combustion engine control for improved fuel efficiency Emerging Cross-Sectional Technologies 211 Active
US7577511B1 Internal combustion engine control for improved fuel efficiency Emerging Cross-Sectional Technologies 204 Active
US9086020B2 Firing fraction management in skip fire engine control Mechanical Engineering; Lighting; Heating 123 Active
US7849835B2 Internal combustion engine control for improved fuel efficiency Emerging Cross-Sectional Technologies 111 Active
US8131445B2 Internal combustion engine control for improved fuel efficiency Emerging Cross-Sectional Technologies 110 Active
US7954474B2 Internal combustion engine control for improved fuel efficiency Emerging Cross-Sectional Technologies 108 Active
US9399964B2 Multi-level skip fire Emerging Cross-Sectional Technologies 102 Active
US7886715B2 Internal combustion engine control for improved fuel efficiency Emerging Cross-Sectional Technologies 99 Active
US8131447B2 Internal combustion engine control for improved fuel efficiency Emerging Cross-Sectional Technologies 98 Active
US8869773B2 Skip fire internal combustion engine control Mechanical Engineering; Lighting; Heating 70 Active
US9512794B2 Noise, vibration and harshness reduction in a skip fire engine control system Mechanical Engineering; Lighting; Heating 70 Active
US8616181B2 Internal combustion engine control for improved fuel efficiency Emerging Cross-Sectional Technologies 61 Active
US8701628B2 Internal combustion engine control for improved fuel efficiency Emerging Cross-Sectional Technologies 58 Active
US9175613B2 System and method for safe valve activation in a dynamic skip firing engine Emerging Cross-Sectional Technologies 56 Active
US9120478B2 Transitory torque modifications using skip fire control Emerging Cross-Sectional Technologies 54 Active
US10060368B2 Engine torque smoothing Emerging Cross-Sectional Technologies 53 Active
US8892330B2 Hybrid vehicle with cylinder deactivation Emerging Cross-Sectional Technologies 49 Active
US9267454B2 Drive train slip for vibration mitigation during skip fire operation Mechanical Engineering; Lighting; Heating 46 Active
US9562470B2 Valve fault detection Emerging Cross-Sectional Technologies 46 Active
US8839766B2 Control of a partial cylinder deactivation engine Mechanical Engineering; Lighting; Heating 45 Active
US9200587B2 Look-up table based skip fire engine control Mechanical Engineering; Lighting; Heating 44 Active
US8402942B2 System and methods for improving efficiency in internal combustion engines Emerging Cross-Sectional Technologies 43 Active
US9664130B2 Using cylinder firing history for combustion control in a skip fire engine Mechanical Engineering; Lighting; Heating 41 Active
US9020735B2 Skip fire internal combustion engine control Emerging Cross-Sectional Technologies 40 Active
US8464690B2 Hybrid vehicle with cylinder deactivation Emerging Cross-Sectional Technologies 40 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.