G.I. Windows, Inc.
Magnetic anastomosis device that creates patent lumens for surgical connections
- Sector
- Medtech
- Headquarters
- Westwood, MA
- Founded
- 2012
- Latest Form D
- $34.1M, Oct 2024
- Total capital
- $76.9M
- Federal grants
- None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
- Private capital raised
- $76.9M
- 5 Form D · last Oct 2024
- 25 months since last filing
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- 23
- 17 pending · first 2020
- Rank in peer group#98 of 1112
Capital timeline
Latest events
- Private capital raisedForm D · SEC · 5th filing$34.1M
- Private capital raisedForm D · SEC · 4th filing$14.5M
- Private capital raisedForm D · SEC · 3rd filing$16.4M
- Private capital raisedForm D · SEC · 2nd filing$9.5M
- Private capital raisedForm D · SEC · 1st filing$2.4M
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#98 · top 9%
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- Andrew K. McGibbonDirectorNamed in SEC Form D filings
- Brian TinkhamExecutive Officer, DirectorNamed in SEC Form D filings
- Christopher Colby ThompsonDirectorNamed in SEC Form D filings
- Dan SheehanDirectorNamed in SEC Form D filings
- Frederic H. MollDirectorNamed in SEC Form D filings
- Fred MollDirectorNamed in SEC Form D filings
Show all 16 people
- F. Thomas WatkinsDirectorNamed in SEC Form D filings
- James WrightExecutive Officer, DirectorNamed in SEC Form D filings
- John K. CammettDirectorNamed in SEC Form D filings
- Marvin K. RyouDirectorNamed in SEC Form D filings
- M. Colby WoodDirectorNamed in SEC Form D filings
- Payson ColemanDirectorNamed in SEC Form D filings
- Peter LukinExecutive OfficerNamed in SEC Form D filings
- Peter K. RogalExecutive Officer, DirectorNamed in SEC Form D filings
- Steve BurrissDirectorNamed in SEC Form D filings
- V. Kadir KadhiresanDirectorNamed in SEC Form D filings
What it has protected
USPTO · 23 granted of 40- PendingSystems And Methods For Preserving And Manipulating Acute OtomiesUSPTOApplication 19669007
- PendingAnastomosis Device With Sensor For Extracorporeal Sensing And ManipulationUSPTOApplication 19443445
- GrantedMethods And Apparatus For Magnet-induced Compression Anastomosis Between Adjacent OrgansUSPTOUS 12,661,118
Show all 40 patent records
- Systems And Methods For Preserving And Manipulating Acute OtomiesSep 17, 2026 · Application 19669007Pending
- Anastomosis Device With Sensor For Extracorporeal Sensing And ManipulationAug 27, 2026 · Application 19443445Pending
- Methods And Apparatus For Magnet-induced Compression Anastomosis Between Adjacent OrgansJun 23, 2026 · US 12,661,118Granted
- Magnetic Anastomosis Devices With Varying Magnetic Force At A DistanceJun 16, 2026 · US 12,653,535Granted
- Systems, Devices, And Methods For Forming AnastomosesMay 14, 2026 · Application 19388361Pending
- Systems, Devices, And Methods For Endoscope Or Laparoscopic Magnetic NavigationMay 12, 2026 · US 12,622,696Granted
- Magnetic Compression Anastomosis Devices With Multipiece Internal Vertebrae Support StructuresMay 5, 2026 · US 12,616,478Granted
- Pressure Profile Magnetic Compression Anastomosis DevicesMay 5, 2026 · US 12,616,477Granted
- Systems And Methods For Delivery Of Magnetic Anastomosis Related Devices Using Surgical RobotsApr 16, 2026 · Application 19323319Pending
- Systems, Devices, And Methods For Endoscope Or Laparoscope Magnetic NavigationMar 24, 2026 · US 12,582,400Granted
- Anastomosis Device With Sensor For Extracorporeal Sensing And ManipulationFeb 3, 2026 · US 12,539,121Granted
- Systems, Devices, And Methods For Forming AnastomosesDec 25, 2025 · Application 19225231Pending
- Systems, Devices, And Methods For Forming AnastomosesDec 23, 2025 · US 12,502,174Granted
- Systems, Devices, And Methods For Forming AnastomosesSep 30, 2025 · US 12,426,884Granted
- Magnetic Anastomosis Devices With Varying Magnetic Force At A DistanceJul 31, 2025 · Application 19073802Pending
- Magnetic Compression Anastomosis Device With Multipiece VertebraMay 22, 2025 · Application 19029652Pending
- Systems And Methods For Preserving And Manipulating Acute OtomiesMay 22, 2025 · Application 19029809Pending
- Systems, Devices, And Methods For Delivery Of Otomy Support And Anastomosis Creation DevicesApr 10, 2025 · Application 18922011Pending
- Magnetic Anastomosis Devices With Varying Magnetic Force At A DistanceMar 25, 2025 · US 12,256,932Granted
- Magnetic Compression Anastomosis Device With Multipiece VertebraJan 21, 2025 · US 12,201,300Granted
- Systems, Devices, And Methods For Endoscope Or Laparoscopic Magnetic NavigationAug 27, 2024 · US 12,070,212Granted
- Pressure Profile Magnetic Compression Anastomosis DevicesAug 27, 2024 · US 12,070,217Granted
- Systems, Devices, And Methods For Endoscope Or Laparoscope Magnetic NavigationAug 6, 2024 · US 12,053,181Granted
- Self-assembling Magnetic Anastomosis Device Having An ExoskeletonJul 4, 2024 · Application 18405558Pending
- Methods And Apparatus For Magnet-induced Compression Anastomosis Between Adjacent OrgansJun 4, 2024 · US 11,998,207Granted
- Systems And Methods For Preserving And Manipulating Of Acute OtomiesMay 2, 2024 · Application 18384022Pending
- Mechanism To Create Enterotomy Between One Or More Compression DevicesFeb 8, 2024 · Application 18378829Pending
- Systems, Devices, And Methods For Endoscope Or Laparoscopic Magnetic NavigationJan 9, 2024 · US 11,864,764Granted
- Self-assembling Magnetic Anastomosis Device Having An ExoskeletonJan 9, 2024 · US 11,864,767Granted
- Systems, Devices, And Methods For Forming AnastomosesSep 12, 2023 · US 11,751,877Granted
- Systems, Devices, And Methods For Delivering And Positioning Magnetic Anastomosis Compression Devices For Subsequent Formation Of AnastomosesAug 17, 2023 · Application 18137645Pending
- Magnetic Anastomosis Devices And Methods Of DeliveryJun 8, 2023 · Application 18102280Pending
- Magnetic Anastomosis Devices And Methods Of DeliveryMar 7, 2023 · US 11,596,408Granted
- Magnetic Anastomosis Devices And Methods Of DeliveryMar 2, 2021 · US 10,932,780Granted
- Magnetic Anastomosis Devices With Varying Magnetic Force At A DistanceDec 29, 2020 · US 10,874,397Granted
- Self-assembling Magnetic Anastomosis Device Having An ExoskeletonOct 27, 2020 · US 10,813,642Granted
- Self-assembling Magnetic Anastomosis Device Having An ExoskeletonMar 24, 2020 · US 10,595,869Granted
- Anastomosis Device With Sensor For Extracorporeal Sensing And ManipulationApplication PCTUS2023025597Pending
- Anastomosis Device With Sensor For Extracorporeal Sensing And ManipulationApplication PCTUS2025059818Pending
- Apparatus For Delivery Of Otomy Support And Anastomosis DevicesApplication 63539926Pending
Related companies, and why
- JenaValve Technology IncSimilar federal contract value in Medtech · null in contracts
- Principal Technologies Inc.Similar federal contract value in Medtech · null in contracts
- 3I NANOTECH, INC.Similar federal contract value in Medtech · null in contracts
- Proscia Inc.Similar federal contract value in Medtech · null in contracts
- LIV Medical Technology Inc.Similar federal contract value in Medtech · null in contracts
- LIQUID BIODX LLCSimilar 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 .