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Canton Strategic Holdings, Inc. (CNTN)

Nasdaq: CNTN · Pharmaceutical Preparations · Bridgewater, NJ · filing with the SEC since 2021
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Grade3.5
◀ Past 2.6● Present 3.8▶ Future 4.0
7 est.
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Patents

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

2 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 Canton Strategic Holdings, Inc.’s names, not what it holds today.

Patents granted
2
2 utility, 1976 to Dec 31, 2025
Granted in 2025
none
in the last year the record reads
Applications published
5
since 2001, to Dec 31, 2025
Names they are printed under
2
a former name
By yearGrantedApplications published
'19'22'23
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
Pharmaceuticals2
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name2 counted
Hillstream BioPharma, Inc. a former name
named as the applicant on its applications, in US
0 granted
5 published
Hillstream BioPharma, Inc. a former name
US, as the owner printed on each patent
2 granted
0 published
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Nov 1, 202211,484,507Polymeric nanoparticles providing nucleic acids encoding TNF-αPharmaceuticalsHillstream BioPharma, Inc.
Feb 15, 202211,246,904Polymeric nanoparticles and a process of preparation thereofPharmaceuticalsHillstream BioPharma, Inc.
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Oct 12, 20232023/0320996NANOPARTICLES AND METHODS OF MANUFACTURE THEREOFPharmaceuticalsHillstream BioPharma, Inc.
May 25, 20232023/0157969POLYMERIC NANOPARTICLES PROVIDING NUCLEIC ACIDS ENCODING TNF-aPharmaceuticalsHillstream BioPharma, Inc.
Jun 9, 20222022/0175874POLYMERIC NANOPARTICLES AND A PROCESS OF PREPARATION THEREOFPharmaceuticalsHillstream BioPharma, Inc.
Jun 9, 20222022/0175688POLYMERIC NANOPARTICLESPharmaceuticalsHillstream BioPharma, Inc.
May 23, 20192019/0151340POLYMERIC NANOPARTICLES COMPRISING BORTEZOMIBPharmaceuticalsHillstream BioPharma, Inc.

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 CNTN · research, not advice