Burl Concepts, Inc.

SAN DIEGO, CA · Founded 2013 · Medtech · Private

SONAS®, a rapid non-invasive brain imaging technology for evaluating neurological trauma and stroke

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Updated Oct 23, 2026 · burlconcepts.com

Sector: Medtech
Headquarters: SAN DIEGO, CA
Founded: 2013
Latest Form D: $2.5M, Sep 2025
Total capital: $11.5M

Federal grants: None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
Private capital raised: $11.5M; 6 Form D · last Sep 2025; 14 months since last filing
Federal contracts: None on recordNo federal contract awards found.
Granted patents: 4; 9 pending · first 2021; Rank in peer group#337 of 1112

Capital timeline

Latest events

Sep 2025Private capital raisedForm D · SEC · 6th filing$2.5M
Apr 2025Private capital raisedForm D · SEC · 5th filing$1.6M
Aug 2023Private capital raisedForm D · SEC · 4th filing$1.1M
Nov 2018Private capital raisedForm D · SEC · 3rd filing$3.1M
Oct 2016Private capital raisedForm D · SEC · 2nd filing$3.1M
Feb 2014Offering registeredForm 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 1112 peers

Line = median

Medtech · Device

Granted patents#337 · top 30%

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

Researcher links verified by same-company patents and grants

Thilo HoelscherResearcherExecutive Officer, DirectorLinked by 1 patent
Benedikt KummerDirectorNamed in SEC Form D filings
Christian BuckleyExecutive OfficerNamed in SEC Form D filings
James BraileanExecutive Officer, DirectorNamed in SEC Form D filings
Jim BraileanExecutive Officer, DirectorNamed in SEC Form D filings
Oppel GreeffDirectorNamed in SEC Form D filings

Show all 9 people

Peter van der SluisExecutive Officer, DirectorNamed in SEC Form D filings
Thomas DoyleExecutive OfficerNamed in SEC Form D filings
Will MartinDirectorNamed in SEC Form D filings

What it has protected

USPTO · 4 granted of 13

Jan 22, 2026PendingSystems and Methods for Non-Invasive Measurement of Intracranial PressureUSPTOApplication 19344237
Oct 21, 2025GrantedSystems and Methods for Non-Invasive Measurement of Intracranial PressureUSPTOUS 12,446,849
Aug 21, 2025PendingPortable Ultrasound DeviceUSPTOApplication 19199367

Show all 13 patent records

Systems and Methods for Non-Invasive Measurement of Intracranial PressureJan 22, 2026 · Application 19344237Pending
Systems and Methods for Non-Invasive Measurement of Intracranial PressureOct 21, 2025 · US 12,446,849Granted
Portable Ultrasound DeviceAug 21, 2025 · Application 19199367Pending
Portable Ultrasound DeviceAug 5, 2025 · US 12,376,827Granted
Portable Ultrasound DeviceOct 31, 2023 · US 11,801,036Granted
Portable Ultrasound DeviceMay 18, 2021 · US 11,006,924Granted
Ultrasound Gel Module AssembliesAug 2, 2018 · Application 15883880Pending
Portable Ultrasound DeviceApplication PCTUS2018024204Pending
Ultrasound Gel Module AssembliesApplication PCTUS2018015944Pending
Apparatuses and Methods for Generating Diagnostic Support DataApplication 62476638Pending
Systems and Methods for Non-Invasive Measurement of Intracranial PressureApplication 63483190Pending
Ultrasound Gel Module AssembliesApplication 62452253Pending
Systems and Methods for Non-Invasive Measurement of Intracranial PressureApplication 63578621Pending

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Regulatory activity · Medtech

Sector-level, not company-level

07 Jul 2026New Animal Drugs; Approval of New Animal Drug Applications; Withdrawal of Approval of New Animal Drug Application; Change of SponsorFood and Drug Administration
30 Jun 2026Medical Devices; General and Plastic Surgery Devices; Classification of the Skin Patch for Treatment of HyperhidrosisFood and Drug Administration
30 Jun 2026Medical Devices; Anesthesiology Devices; Classification of the Monitor for Opioid Induced Impairment of OxygenationFood and Drug Administration
29 Jun 2026Medical Devices; Orthopedic Devices; Classification of the Medial Knee Implanted Shock AbsorberFood and Drug Administration
26 Jun 2026Medical Devices; Neurological Devices; Classification of the External Lower Extremity Nerve Stimulator for Restless Legs SyndromeFood and Drug Administration
26 Jun 2026Medical Devices; General Hospital and Personal Use Devices; Classification of the Infant Supine Sleep SystemFood and Drug Administration

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 Oct 23, 2026. SBIR and STTR awards through Oct 21, 2026.