RHAEOS, INC

Evanston, IL · Founded 2018 · Medtech · Private

FlowSense, a wireless wearable device that non-invasively measures cerebrospinal fluid flow through hydrocephalus shunts

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Updated · rhaeos.com

Sector
Medtech
Headquarters
Evanston, IL
Founded
2018
Latest Form D
$6.2M, Mar 2023
Total capital
$13M
Federal grants
$6.8M
7 awards · 2020–2026
Rank in peer group#184 of 538
Private capital raised
$6.2M
1 Form D · last Mar 2023
44 months since last filing
Federal contracts
None on recordNo federal contract awards found.
Granted patents
4
8 pending · first 2023
Rank in peer group#125 of 538

Capital timeline

2020202120222023202420252026FEDERAL ↑EQUITY ↓Cumulative $13M$979K$3.1M$307K$966K$299K$966K1st Form D$6.2M
2020202220242026FEDERAL ↑EQUITY ↓Cumulative $13M$979K$3.1M$966K$966K1st Form D$6.2M

Latest events

  • Federal grantHealth and Human S · Phase II · Enhancing Healthcare Delivery and Patient Outcomes: Noninvasive Wireless Sensors to Improve Ventricular Shunt Monitoring, Reduce Imaging, and Alleviate the Burden on Providers, Patients, and Families$966K
  • Federal grantHealth and Human S · Phase I · Lowering Economic, Infrastructure, & Physical Barriers with Noninvasive, Wireless Telemedicine Cerebrospinal Fluid Flow Sensing for Pediatric Hydrocephalus Patients in Puerto Rico$299K
  • Federal grantHealth and Human S · Phase II · Enhancing Healthcare Delivery and Patient Outcomes: Noninvasive Wireless Sensors to Improve Ventricular Shunt Monitoring, Reduce Imaging, and Alleviate the Burden on Providers, Patients, and Families$966K
  • Federal grantHealth and Human S · Phase I · Development of wearable sensors for continuous wound monitoring$307K
  • Private capital raisedForm D · SEC · 1st filing$6.2M
  • Federal grantHealth and Human S · Phase II · Diversity supplement for noninvasive, wireless thermal sensors for the quantitative monitoring of ventricular shunt function in patients with hydrocephalus$3.1M
  • Federal grantNSF · Phase II · SBIR Phase II: Development of a Noninvasive, Wireless Telemedicine Flow Sensor for Patients with Hydrocephalus$979K
Show 1 earlier federal award
  • Federal grantNSF · Phase I · SBIR Phase I: Hardware and Software Development for Noninvasive, Wireless Flow Sensors for Patients with Hydrocephalus$250K

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.

Federal first

38months

from RHAEOS, INC’s first federal award to its first private round.

First federal award · Jan 2020
NSF · $250K
First Form D · Mar 2023
$6.2M · 1st Form D
Awards before first raise
3 awards

An association in public records, not a cause or a prediction.

Standing among 538 peers

Line = median

Medtech · Device

  • Federal grants#184 · top 34%
  • Granted patents#125 · top 23%

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
  • Adam Chad ZyskResearcherExecutive OfficerLinked by 2 patents
  • Anna Lisa SomeraResearcherExecutive OfficerLinked by $4.3M in grants as PI
  • Chad Chad SeaverDirectorNamed in SEC Form D filings
  • John A. RogersExecutive Officer, DirectorNamed in SEC Form D filings
  • Roozbeh A. GhaffariDirectorNamed in SEC Form D filings
  • R. Chad WebbExecutive Officer, DirectorNamed in SEC Form D filings

What it has protected

USPTO · 4 granted of 12
  • GrantedAdhesive PatchUSPTOUS D1,130,755
  • PendingWearable Thermal SensorsUSPTOApplication 19346363
  • GrantedFlow SensorUSPTOUS D1,085,923
Show all 12 patent records
  • Adhesive PatchJun 16, 2026 · US D1,130,755Granted
  • Wearable Thermal SensorsApr 2, 2026 · Application 19346363Pending
  • Flow SensorJul 29, 2025 · US D1,085,923Granted
  • Wearable Thermal Sensors, Systems And Methods ThereofMar 6, 2025 · Application 18725949Pending
  • Flow SensorNov 7, 2023 · US D1,004,105Granted
  • Wireless, Non-invasive, Continuous Monitoring Of Cerebrospinal Fluid Flow Through ShuntsAug 10, 2023 · Application 18003218Pending
  • Flow SensorFeb 14, 2023 · US D,978,357Granted
  • Wearable Thermal Sensors, Systems And Methods ThereofApplication PCTUS2022082608Pending
  • Wearable Thermal Sensors, Systems And MethodsApplication 63295193Pending
  • Wearable Thermal Sensors, Systems And MethodsApplication PCTUS2024036320Pending
  • Wireless, Non-invasive, Continuous Monitoring Of Cerebrospinal Fluid Flow Through ShuntsApplication PCTUS2021038850Pending
  • Wireless, Non-invasive, Continuous Monitoring Of Cerebrospinal Fluid Flow Through ShuntsApplication 63043720Pending
  • ANOVA BIOMEDICAL, INC.Similar federal contract value in Medtech · null in contracts
  • FLEX ORTHOPAEDICS, INC.Similar federal contract value in Medtech · null in contracts
  • Synchro Motion LLCSimilar federal contract value in Medtech · null in contracts
  • Lucira Health, Inc.Similar federal contract value in Medtech · null in contracts
  • NeuraMedica Inc.Similar federal contract value in Medtech · null in contracts
  • BRITESEED, LLCSimilar federal contract value in Medtech · null in contracts

Regulatory activity · Medtech

Sector-level, not company-level

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 .