Cocoon Biotech Inc.

Mansfield, MA · Founded 2013 · Materials · Private

Biodegradable polymers and bio-based materials as petrochemical alternatives

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Updated Oct 23, 2026 · cocoonbiotech.com

Sector: Materials
Headquarters: Mansfield, MA
Founded: 2013
Latest Form D: $385K, Dec 2021
Total capital: $4M

Federal grants: None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
Private capital raised: $4M; 5 Form D · last Dec 2021; 58 months since last filing
Federal contracts: None on recordNo federal contract awards found.
Granted patents: 6; 34 pending · first 2023; Rank in peer group#42 of 369

Capital timeline

Latest events

Dec 2021Private capital raisedForm D · SEC · 5th filing$385K
Oct 2020Private capital raisedForm D · SEC · 4th filing$865K
Mar 2017Private capital raisedForm D · SEC · 3rd filing$755K
Oct 2015Private capital raisedForm D · SEC · 2nd filing$1.8M
Jun 2014Private capital raisedForm D · SEC · 1st filing$200K

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 369 peers

Line = median

Materials · Material

Granted patents#42 · top 11%

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

Ailis Tweed-KentExecutive Officer, DirectorNamed in SEC Form D filings
Annalisa JenkinsDirectorNamed in SEC Form D filings
Charles KoppelDirectorNamed in SEC Form D filings
Grace ColonDirectorNamed in SEC Form D filings
Mary ThistleDirectorNamed in SEC Form D filings

What it has protected

USPTO · 6 granted of 40

Aug 11, 2026GrantedSilk-Based Products, Formulations, and Methods of UseUSPTOUS 12,703,725
Jun 11, 2026PendingSilk-based Product Formulations And Methods Of UseUSPTOApplication 19283673
Oct 2, 2025PendingMethods Of Reducing The Signs Or Symptoms Of Dermal Disorders With Topically Applied Silk FibroinUSPTOApplication 18862286

Show all 40 patent records

Silk-Based Products, Formulations, and Methods of UseAug 11, 2026 · US 12,703,725Granted
Silk-based Product Formulations And Methods Of UseJun 11, 2026 · Application 19283673Pending
Methods Of Reducing The Signs Or Symptoms Of Dermal Disorders With Topically Applied Silk FibroinOct 2, 2025 · Application 18862286Pending
Silk-based Product Formulations And Methods Of UseSep 2, 2025 · US 12,403,177Granted
Methods Of Making Stable Silk Fibroin FormulationsDec 10, 2024 · US 12,161,693Granted
Silk-Based Products, Formulations, and Methods of UseOct 24, 2024 · Application 17615737Pending
Methods For Reducing Impurities In Silk Fibroin PreparationsSep 12, 2024 · Application 18666032Pending
Methods For Reducing Impurities In Silk Fibroin PreparationsJul 2, 2024 · US 12,024,538Granted
Ocular Applications Of Silk-based ProductsOct 3, 2023 · US 11,771,769Granted
Silk-based Product Formulations And Methods Of UseApr 25, 2023 · US 11,633,455Granted
Ocular Applications Of Silk-based ProductsAug 5, 2021 · Application 16762544Pending
Silk-based Products And Methods Of UseMay 13, 2021 · Application 16762547Pending
Compositions Including Benzenesulfonamide-containing Non-steroidal Anti-inflammatory Drugs, Silk Fibroin, And A Gelling Agent And Uses ThereofFeb 7, 2019 · Application 16077078Pending
Silk-based Product Formulations And Methods Of UseApplication PCTUS2019035306Pending
Silk-based Product Formulations And Methods Of UseApplication 62856936Pending
Silk-based Products And Methods Of UseApplication PCTUS2018059996Pending
Ocular Applications Of Silk-based ProductsApplication PCTUS2018059998Pending
Silk-based Products For Ocular LubricationApplication 62757984Pending
Silk-based Product Formulations And Methods Of UseApplication 62757995Pending
Silk-based Product Formulations And Methods Of UseApplication 62717025Pending
Silk-based Products For Ocular LubricationApplication 62680376Pending
Ocular Silk-based Products And Methods Of UseApplication 62680371Pending
Silk-based Products And Methods Of UseApplication 62680386Pending
Silk-based Products And Methods Of UseApplication 62659213Pending
Ocular Silk-based Products And Methods Of UseApplication 62659209Pending
Manufacture And Uses Of Silk FibroinApplication 62584153Pending
Compositions Including Benzenesulfonamide-containing Non-steroidal Anti-inflammatory Drugs And Uses ThereofApplication PCTUS2017017535Pending
Formulations Containing Biological Agents and Methods of UseApplication 63872047Pending
Gels Including Benzenesulfonamide-containing Non-steroidal Anti-inflammatory Drugs And Uses ThereofApplication 62329131Pending
Formulations Containing Biological Agents and Methods of UseApplication 63737287Pending
Methods For Reducing Impurities In Silk Fibroin PreparationsApplication PCTUS2023020655Pending
Methods Of Reducing The Signs Or Symptoms Of Dermal Disorders With Topically Applied Silk FibroinApplication PCTUS2023020349Pending
Methods For Reducing Impurities In Silk Fibroin PreparationsApplication 63420160Pending
Methods Of Reducing The Signs Or Symptoms Of Dermal Disorders With Topically Applied Silk FibroinApplication 63337325Pending
Methods Of Making Stable Silk Fibroin FormulationsApplication PCTUS2022024731Pending
Formulations Containing Processed SilkApplication 63175024Pending
Silk-based Products, Formulations, And Methods Of UseApplication PCTUS2020036073Pending
Silk-based Products, Formulations, And Methods Of UseApplication 62944534Pending
Silk-based Products, Formulations, And Methods Of UseApplication 62926855Pending
Silk-based Textiles And Methods Of UseApplication 62893834Pending

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Oceanix USA Inc.Similar federal contract value in Materials · null in contracts
INTEMATIX CorpSimilar federal contract value in Materials · null in contracts
Veloxint CorpSimilar federal contract value in Materials · null in contracts
EKA SOLUTIONS, INC.Similar federal contract value in Materials · null in contracts

Regulatory activity · Materials

Sector-level, not company-level

24 Apr 2026Eliminating Regulations Establishing Fellowships in Laboratory Standardization and Testing for Foreign CitizensNational Institute of Standards and Technology
19 Feb 2026Eliminating Obsolete Marking Requirements for Toy, Look-Alike, and Imitation FirearmsNational Institute of Standards and Technology
19 Feb 2026Eliminating Obsolete Regulations Related to the Advanced Technology Program and the Technology Innovation ProgramNational Institute of Standards and Technology

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.