Xheme Inc.
Polymer nanocomposite blood bags with extended shelf-life preservation
- Sector
- Medtech
- Headquarters
- NEWTON, MA
- Founded
- 2019
- Latest Form D
- $40K, Sep 2025
- Total capital
- $1.8M
- Federal grants
- $1.7M
- 3 awards · 2021–2025
- Rank in peer group#9 of 27
- Private capital raised
- $125K
- 4 Form D · last Sep 2025
- 13 months since last filing
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- 2
- 9 pending · first 2025
- Rank in peer group#6 of 27
Capital timeline
Latest events
- Private capital raisedForm D · SEC · 4th filing$40K
- Federal grantNSF · Phase II · STTR Phase II: A Completely Non-Toxic Blood Bag That Keeps Blood Healthier, Longer$1.2M
- Federal grantNSF · Phase I · STTR Phase I: A Completely Non-Toxic Blood Bag That Keeps Blood Healthier, Longer$275K
- Private capital raisedForm D · SEC · 3rd filing$50K
- Private capital raisedForm D · SEC · 2nd filing$10K
- Federal grantNSF · Phase I · STTR Phase I: Structure Property Relationship Studies for Designing Next Generation Nanocomposite Blood Bags$256K
- Private capital raisedForm D · SEC · 1st filing$25K
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 27 peers
Line = medianMedtech · Material
- Federal grants#9 · top 33%
- Granted patents#6 · top 22%
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- Kumar ChallaResearcherExecutive Officer, DirectorLinked by $1.7M in grants as PI
- Nambula VenugopalDirectorNamed in SEC Form D filings
- Pamela BurtonDirectorNamed in SEC Form D filings
- Plaut D JonathanPromoterNamed in SEC Form D filings
What it has protected
USPTO · 2 granted of 11- PendingNanporous Cerium Oxide Nanoparticle Macro-structureUSPTOApplication 19367309
- GrantedNanoporous Cerium Oxide Nanoparticle Macro-Structures In Paints And CoatingsUSPTOUS 12,534,630
- GrantedNanoporous Cerium Oxide Nanoparticle Macro-structureUSPTOUS 12,480,009
Show all 11 patent records
- Nanporous Cerium Oxide Nanoparticle Macro-structureFeb 19, 2026 · Application 19367309Pending
- Nanoporous Cerium Oxide Nanoparticle Macro-Structures In Paints And CoatingsJan 27, 2026 · US 12,534,630Granted
- Nanoporous Cerium Oxide Nanoparticle Macro-structureNov 25, 2025 · US 12,480,009Granted
- Bioreactors Providing Cerium Oxide And Zirconium DioxideDec 12, 2024 · Application 18737021Pending
- Nanoporous Cerium Oxide Nanoparticle Macro-Structures In Polymeric ElastomersNov 23, 2023 · Application 17664253Pending
- Blood Preservation Compositions, Devices And Uses Thereof Utilizing: A. Zirconium Dioxide Nanoparticles Or Nanoporous Zirconium Dioxide Nanoparticle Macrostructures; And B. Nanoporous Cerium Oxide Nanoparticle MacrostructuresApplication PCTUS2022077776Pending
- Nanoporous Cerium Oxide Nanoparticle Macro-structureApplication PCTUS2022074303Pending
- Nanoporous Cerium Oxide Nanoparticle Macro-structures As Autoxidation InhibitorsApplication PCTUS2023071680Pending
- Bioreactors Providing Cerium Oxide And Zirconium DioxideApplication PCTUS2024032944Pending
- Blood Preservation Compositions, Devices And Uses Thereof Utilizing: A. Zirconium Dioxide Nanoparticles or Nanoporous Zirconium Dioxide Nanoparticle Macrostructures; And B. Nanoporous Cerium Oxide Nanoparticle MacrostructuresApplication 63253629Pending
- Nanoporous Cerium Oxide Nanoparticle Macro-structures In Polymeric ElastomersApplication PCTUS2023022644Pending
Related companies, and why
- CORINNOVA INCSimilar federal contract value in Medtech · null in contracts
- ONEBREATH, INC.Similar federal contract value in Medtech · null in contracts
- RESUTURE INC.Similar federal contract value in Medtech · null in contracts
- M3D, INC.Similar federal contract value in Medtech · null in contracts
- REHABNETICS MEDICAL LLCSimilar federal contract value in Medtech · null in contracts
- WHITE EAGLE SONIC TECHNOLOGIES, 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 .