Hyliion Inc.
Fuel-flexible linear generators for onsite power generation
- Sector
- Energy
- Headquarters
- Cedar Park, TX
- Founded
- 2016
- Latest Form D
- $6M, Feb 2019
- Total capital
- $12.5M
- Federal grants
- $1.1M
- 2 awards · 2024–2025
- Rank in peer group#38 of 47
- Private capital raised
- $11.3M
- 3 Form D · last Feb 2019
- 92 months since last filing
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- 26
- 14 pending · first 2021
- Rank in peer group#1 of 47
Capital timeline
Latest events
- Federal grantDefense · Phase II · Research And Development$1.0M
- Federal grantDefense · Phase I · SBIR Phase I$140K
- Private capital raisedForm D · SEC · 3rd filing$6M
- Private capital raisedForm D · SEC · 2nd filing$3.3M
- Private capital raisedForm D · SEC · 1st filing$2M
Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.
Standing among 47 peers
Line = medianEnergy · Device
- Federal grantsBelow median
- Granted patents#1 · top 2%
Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.
Founders and team
From SEC Form D filings- Edward OlkkolaExecutive Officer, DirectorNamed in SEC Form D filings
- Thomas HealyExecutive OfficerNamed in SEC Form D filings
What it has protected
USPTO · 26 granted of 40- GrantedDynamic Battery Charge Strategy Utilizing Current And Predicted Vehicle And Environmental ConditionsUSPTOUS 12,679,327
- GrantedTrailer-based Energy Capture And ManagementUSPTOUS 12,319,150
- GrantedSupplemental Electric Drive With Primary Engine Recognition For Electric Drive Controller AdaptationUSPTOUS 12,286,092
Show all 40 patent records
- Dynamic Battery Charge Strategy Utilizing Current And Predicted Vehicle And Environmental ConditionsJul 14, 2026 · US 12,679,327Granted
- Trailer-based Energy Capture And ManagementJun 3, 2025 · US 12,319,150Granted
- Supplemental Electric Drive With Primary Engine Recognition For Electric Drive Controller AdaptationApr 29, 2025 · US 12,286,092Granted
- Drive Train Configurations For A Vehicle With Multiple Reversible EnginesMar 13, 2025 · Application 18580768Pending
- Drive Train Configurations For A Vehicle With Multiple Reversible EnginesDec 31, 2024 · US 12,179,738Granted
- Two-state Bounded Closed-loop Control Of ActuatorsDec 5, 2024 · Application 18325238Pending
- Dynamic Tag E-axle And Method For Controlling A Drivetrain Having A Dynamic Tag E-axleNov 19, 2024 · US 12,145,420Granted
- Regenerative Electrical Power System With State Of Charge Management In View Of Predicted And/or Scheduled Stopover Auxiliary Power RequirementsNov 5, 2024 · US 12,136,738Granted
- Drive Train Configurations For A Vehicle Agnostic To A Power SourceOct 22, 2024 · US 12,122,357Granted
- Trailer-based Energy Capture And ManagementJul 2, 2024 · US 12,024,029Granted
- Battery Pack Optimization For Thermal ManagementMar 19, 2024 · US 11,936,017Granted
- Supplemental Electric Drive With Primary Engine Recognition For Electric Drive Controller AdaptationMar 19, 2024 · US 11,932,232Granted
- System and Method for Preparing a Hybrid Electric Vehicle for Operation in a Geographic Zone with an Operational RequirementMar 14, 2024 · Application 18447727Pending
- Tractor Unit With On-Board Regenerative Braking Energy Storage for Stopover HVAC Operation Without Engine IdleFeb 20, 2024 · US 11,904,697Granted
- Vehicle Energy Management System and Related MethodsFeb 1, 2024 · Application 18450866Pending
- Power Distribution System And Method For Isolating Batteries For Uninterrupted ServiceFeb 1, 2024 · Application 18360629Pending
- Dynamic Tag E-axle And Method For Controlling A Drivetrain Having A Dynamic Tag E-axleJan 30, 2024 · US 11,884,124Granted
- Fuel Agnostic Heating, Ventilation, Air Conditioning And Electrical Power Generation (hvac-p) SystemJan 25, 2024 · Application 18352505Pending
- System And Method For Fulfilling Requests For Electric Energy ServicesJan 25, 2024 · Application 18308163Pending
- Fully Integrated Compact Power ModuleJan 18, 2024 · Application 18352492Pending
- Regenerative Electrical Power System With State Of Charge Management In View Of Predicted And-or Scheduled Stopover Auxiliary Power RequirementsJan 16, 2024 · US 11,876,236Granted
- Trailer-Based Energy Capture and ManagementDec 5, 2023 · US 11,833,905Granted
- Multi-fuel System And Method For Managing PerformanceNov 30, 2023 · Application 18319061Pending
- System And Method For Battery State Of Health Characterization Based On Route SegmentsNov 23, 2023 · Application 18316432Pending
- Vehicle Energy Management System And Related MethodsSep 26, 2023 · US 11,766,951Granted
- System And Method For Managing Battery Temperatures In A Battery PackApr 27, 2023 · Application 17507614Pending
- System And Method For Managing Performance Of A Vehicle Based On TerrainMar 2, 2023 · Application 17461175Pending
- Thermal Management System For Range Extender VehicleFeb 2, 2023 · Application 17965538Pending
- Regenerative Electrical Power System With State Of Charge Management In View Of Predicted And-or Scheduled Stopover Auxiliary Power RequirementsDec 13, 2022 · US 11,527,799Granted
- Battery Pack Optimization for Thermal ManagementDec 6, 2022 · US 11,522,236Granted
- Thermal Management System For Range Extender VehicleNov 22, 2022 · US 11,505,030Granted
- Vehicle Energy Management System and Related MethodsOct 25, 2022 · US 11,479,144Granted
- Battery Pallet Racking System And Method For Charging Batteries In A Battery Pallet Racking SystemSep 29, 2022 · Application 17705162Pending
- Tractor Unit With On-board Regenerative Braking Energy Storage For Stopover HVAC Operation Without Engine IdleJun 28, 2022 · US 11,370,292Granted
- Supplemental Electric Drive With Primary Engine Recognition For Electric Drive Controller AdaptationJun 7, 2022 · US 11,351,979Granted
- Vehicle Energy Management System and Related MethodsMay 10, 2022 · US 11,325,498Granted
- Tractor Unit With On-Board Regenerative Braking Energy Storage for Stopover HVAC Operation Without Engine IdleApr 19, 2022 · US 11,305,633Granted
- Tractor Unit With On-board Regenerative Braking Energy Storage For Stopover HVAC Operation Without Engine IdleApr 19, 2022 · US 11,305,634Granted
- Battery pack optimization for thermal managementOct 26, 2021 · US 11,158,890Granted
- Regenerative Electrical Power System With State Of Charge Management In View Of Predicted And-or Scheduled Stopover Auxiliary Power RequirementsAug 17, 2021 · US 11,094,988Granted
Related companies, and why
- Tour engine IncSimilar federal contract value in Energy · null in contracts
- H NU SOLAR LLCSimilar federal contract value in Energy · null in contracts
- Solaria CorpSimilar federal contract value in Energy · null in contracts
- Arkansas Power Electronics International, Inc.Similar federal contract value in Energy · null in contracts
- Flux Marine Ltd.Similar federal contract value in Energy · null in contracts
- Garrett Motion Inc.Similar federal contract value in Energy · null in contracts
Regulatory activity · Energy
- Air Plan Approval; Michigan; Redesignation and Maintenance Plan for the Partial St. Clair 2010 1-Hour Sulfur Dioxide (SO2) NAAQS Nonattainment AreaEnvironmental Protection Agency
- Air Plan Approval; Delaware; 2006 24-Hour Fine Particulate Matter Limited Maintenance Plan for the Philadelphia Nonattainment AreaEnvironmental Protection Agency
- Air Plan Approval; Oklahoma; Updates to the State Implementation Plan for New Source Review Permitting and General SIP ProvisionsEnvironmental Protection Agency
- List of Approved Spent Fuel Storage Casks: NAC International, Inc., MAGNASTOR® Storage System, Certificate of Compliance No. 1031, Amendment Nos. 16 and 17 and Revisions to Amendment Nos. 0 Through 16Nuclear Regulatory Commission
- Epyrifenacil; Pesticide TolerancesEnvironmental Protection Agency
- Fluoxapiprolin; Pesticide TolerancesEnvironmental Protection Agency
Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.
Sources
Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.
How to read this page
Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.
Data freshness
SEC Form D filings through . SBIR and STTR awards through .