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Cytosorbents Corporation (CTSO)

Nasdaq: CTSO · Surgical & Medical Instruments & Apparatus · Princeton, NJ · filing with the SEC since 2004
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Grade4.2
◀ Past 3.0● Present 4.8▶ Future 4.6
1 est.
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Patents

US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026

31 patents granted to the 2 names below, as the owner printed on each patent when it was granted. A later sale, a lapse or an expiry is not read, so this is what was granted to Cytosorbents Corporation’s names, not what it holds today.

Patents granted
31
31 utility, 1976 to Dec 31, 2025
Granted in 2025
2
Against 3 in 2024 and 4 in 2023
Applications published
37
2 of them in 2025
Names they are printed under
2
its own name
By yearGrantedApplications published
'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
Each pair is one calendar year. Applications are published about eighteen months after filing, so the newest years read low.
What they are aboutgrants since 2021
Chemical engineering10
Pharmaceuticals5
Medical technology2
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name2 counted
CytoSorbents, Inc. its own name
US, as the owner printed on each patent
31 granted
6 published
CytoSorbents Corporation its own name
named as the applicant on its applications, in US
0 granted
31 published
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Apr 22, 202512,280,196Methods of using polymersPharmaceuticalsCytoSorbents, Inc.
Jan 28, 202512,208,116Multi-functional hemocompatible porous bead sorbent for removing protein based toxins and potassium from biological fluidsChemical engineeringCytoSorbents, Inc.
Oct 22, 202412,121,879Crosslinked polysaccharide based absorbents for removal of anti-A and/or anti-B antibodies from human plasma and whole bloodChemical engineeringCytoSorbents, Inc.
Sep 3, 202412,076,474Method of treating traumatic brain injuryChemical engineeringCytoSorbents, Inc.
Apr 30, 202411,969,535Connector assembly and methods of useMedical technologyCytoSorbents, Inc.
Nov 28, 202311,826,724Use of a hemocompatible porous polymer bead sorbent for removal of endotoxemia-inducing moleculesChemical engineeringCytoSorbents, Inc.
Sep 12, 202311,752,250Hemocompatibility modifiers for cross-linked polymeric materialChemical engineeringCytoSorbents, Inc.
Aug 15, 202311,723,916Multi-functional hemocompatible porous polymer bead sorbent for removing protein based toxins and potassium from biological fluidsChemical engineeringCytoSorbents, Inc.
Mar 14, 202311,602,585Methods for reducing contamination in a biological substancePharmaceuticalsCytoSorbents, Inc.
Dec 21, 202111,202,855Methods for removal of toxins from blood using an extracorporeal circuit comprised of a hollow-fiber filter module and polymer sorbent in combinationMedical technologyCytoSorbents, Inc.
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Jul 10, 20252025/0222189Blood And Toxin Filter Device And Use Of SameChemical engineeringCytoSorbents Corporation
Jan 9, 20252025/0009951IMPROVED CANCER IMMUNOTHERAPY TREATMENTSChemical engineeringCytoSorbents Corporation
Jun 20, 20242024/0197977IMPROVED IMMUNE RESPONSE AND DECREASED IMMUNOPARALYSIS WITH IMMUNOMODULATING TREATMENTChemical engineeringCytoSorbents Corporation
Mar 14, 20242024/0082817Use Of A Hemocompatible Porous Polymer Bead Sorbent For Removal Of Endotoxemia-Inducing MoleculesChemical engineeringCytoSorbents Corporation
Jan 18, 20242024/0016830Multi-Functional Hemocompatible Porous Bead Sorbent For Removing Protein Based Toxins And Potassium From Biological FluidsChemical engineeringCytoSorbents Corporation · patent 12,208,116 granted from it
Nov 30, 20232023/0381391The Use of a Hemocompatible Porous Polymer Bread Sorbent for Removal of Pamps and DampsChemical engineeringCytoSorbents Corporation
Oct 5, 20232023/0310693Therapeutic And Cosmetic Wound TreatmentMedical technologyCytoSorbents Corporation
Oct 5, 20232023/0310493REDUCTION OF ADVANCED GLYCATION ENDPRODUCTS FROM BODILY FLUIDSChemical engineeringCytoSorbents Corporation
Jun 1, 20232023/0166019METHODS OF USING POLYMERSPharmaceuticalsCytoSorbents Corporation · patent 12,280,196 granted from it
Feb 3, 20222022/0032271CROSSLINKED POLYSACCHARIDE BASED ABSORBENTS FOR REMOVAL OF ANTI-A AND/OR ANTI-B ANTIBODIES FROM HUMAN PLASMA AND WHOLE BLOODChemical engineeringCytoSorbents Corporation · patent 12,121,879 granted from it
What it applied for, 2024 to 2025: Chemical engineering 5.

A patent is counted where the owner printed on it when it was granted carries the company’s own name, a former name, the name of a subsidiary its annual report lists, or its own name with a patent-holding phrase (Technology Licensing, Intellectual Property and the like), once the legal form, case and punctuation are set aside, and prints a country that name counts in. PatentsView’s data are published under the Creative Commons Attribution 4.0 licence. Source: PatentsView's granted patents and pre-grant publications, disambiguated, from the USPTO's Open Data Portal, through Dec 31, 2025, read Oct 27, 2026.

SI Assistanton CTSO · research, not advice