Rivermark Medical, Inc.
FloStent, a urethral stent device for benign prostatic hyperplasia treatment
- Sector
- Medtech
- Headquarters
- MILWAUKEE, WI
- Founded
- 2021
- Latest Form D
- $30M, Oct 2024
- Total capital
- $33.9M
- Federal grants
- None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
- Private capital raised
- $33.9M
- 3 Form D · last Oct 2024
- 25 months since last filing
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- 2
- 7 pending · first 2025
- Rank in peer group#425 of 1112
Capital timeline
Latest events
- Private capital raisedForm D · SEC · 3rd filing$30M
- Private capital raisedForm D · SEC · 2nd filing$2.1M
- Private capital raisedForm D · SEC · 1st filing$1.8M
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 = medianMedtech · Device
- Granted patents#425 · top 38%
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 KadlecResearcherExecutive Officer, DirectorLinked by 2 patents
- Anand DoraiswamyExecutive Officer, DirectorNamed in SEC Form D filings
- Carter MeyerDirectorNamed in SEC Form D filings
- Christopher KasterDirectorNamed in SEC Form D filings
- Joseph BillerDirectorNamed in SEC Form D filings
- Josh BaltzellDirectorNamed in SEC Form D filings
Show all 8 people
- Matthew ErcolaniDirectorNamed in SEC Form D filings
- Scott ButtonDirectorNamed in SEC Form D filings
What it has protected
USPTO · 2 granted of 9- GrantedIntraluminal Stents For Treating Benign Prostatic HyperplasiaUSPTOUS 12,655,445
- PendingIntraluminal Devices For Treating Benign Prostatic HyperplasiaUSPTOApplication 19373605
- PendingIntraluminal Stent With Handle For Treating Benign Prostatic HyperplasiaUSPTOApplication 19261907
Show all 9 patent records
- Intraluminal Stents For Treating Benign Prostatic HyperplasiaJun 16, 2026 · US 12,655,445Granted
- Intraluminal Devices For Treating Benign Prostatic HyperplasiaFeb 26, 2026 · Application 19373605Pending
- Intraluminal Stent With Handle For Treating Benign Prostatic HyperplasiaFeb 5, 2026 · Application 19261907Pending
- Intraluminal Stent With Handle For Treating Benign Prostatic HyperplasiaJul 15, 2025 · US 12,357,479Granted
- Intraluminal Devices For Treating Benign Prostatic HyperplasiaOct 7, 2021 · Application 16972221Pending
- Intraluminal Stent With Handle For Treating Benign Prostatic HyperplasiaApplication 63484462Pending
- Intraluminal Stent With Handle For Treating Benign Prostatic HyperplasiaApplication 63376984Pending
- Intraluminal Stents For Treating Benign Prostatic HyperplasiaApplication PCTUS2022039481Pending
- Intraluminal Stent With Handle For Treating Benign Prostatic HyperplasiaApplication PCTUS2023074925Pending
Related companies, and why
- Ventana Micro Systems Inc.Similar federal contract value in Medtech · null in contracts
- Urotronic, Inc.Similar federal contract value in Medtech · null in contracts
- LUMINOPIA, INC.Similar federal contract value in Medtech · null in contracts
- Preceptis Medical, Inc.Similar federal contract value in Medtech · null in contracts
- CarePredictSimilar federal contract value in Medtech · null in contracts
- VDYNE, INC.Similar federal contract value in Medtech · null in contracts
Regulatory activity · Medtech
- New Animal Drugs; Approval of New Animal Drug Applications; Withdrawal of Approval of New Animal Drug Application; Change of SponsorFood and Drug Administration
- Medical Devices; General and Plastic Surgery Devices; Classification of the Skin Patch for Treatment of HyperhidrosisFood and Drug Administration
- Medical Devices; Anesthesiology Devices; Classification of the Monitor for Opioid Induced Impairment of OxygenationFood and Drug Administration
- Medical Devices; Orthopedic Devices; Classification of the Medial Knee Implanted Shock AbsorberFood and Drug Administration
- Medical Devices; Neurological Devices; Classification of the External Lower Extremity Nerve Stimulator for Restless Legs SyndromeFood and Drug Administration
- Medical 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 . SBIR and STTR awards through .