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Fennec Pharmaceuticals Inc. (FENC)

Nasdaq: FENC · Biological Products, (No Diagnostic Substances) · Research Triangle Park, NC · filing with the SEC since 2002
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Grade5.6
◀ Past 6.5● Present 6.5▶ Future 3.7
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

38 patents granted to the 3 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 Fennec Pharmaceuticals Inc.’s names, not what it holds today.

Patents granted
38
38 utility, 1976 to Dec 31, 2025
Granted in 2025
1
Against 2 in 2024 and 1 in 2023
Applications published
47
1 of them in 2025
Names they are printed under
3
a former name, its own name
By yearGrantedApplications published
'04'05'06'07'08'09'11'12'14'20'21'22'23'24'25
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
Pharmaceuticals6
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name3 counted
Adherex Technologies, Inc. a former name
CA, as the owner printed on each patent
31 granted
30 published
Fennec Pharmaceuticals, Inc. its own name
US, as the owner printed on each patent
7 granted
14 published
Fennec Pharmaceuticals Inc. its own name
named as the applicant on its applications, in US
0 granted
3 published
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
May 27, 202512,311,026Therapeutic uses for sodium thiosulfate formulationsPharmaceuticalsFennec Pharmaceuticals, Inc.
Jun 4, 202411,998,604Therapeutic uses for sodium thiosulfate formulationsPharmaceuticalsFennec Pharmaceuticals, Inc.
Apr 23, 202411,964,018Therapeutic uses for sodium thiosulfate formulationsPharmaceuticalsFennec Pharmaceuticals, Inc.
Apr 4, 202311,617,793Anhydrous sodium thiosulfate and formulations thereofPharmaceuticalsFennec Pharmaceuticals, Inc.
Nov 29, 202211,510,984Anhydrous sodium thiosulfate and formulations thereofPharmaceuticalsFennec Pharmaceuticals, Inc.
Apr 5, 202211,291,728Anhydrous sodium thiosulfate and formulations thereofPharmaceuticalsFennec Pharmaceuticals, Inc.
Oct 6, 202010,792,363Anhydrous sodium thiosulfate and formulations thereofPharmaceuticalsFennec Pharmaceuticals, Inc.
Feb 25, 20148,658,618Methods for preventing or reducing neurotoxicity associated with administering DPD inhibitors in combination with 5-FU and 5-FU prodrugsPharmaceuticalsAdherex Technologies, Inc.
Nov 27, 20128,318,756Methods for administering DPD inhibitors in combination with 5-FU and 5-FU prodrugsPharmaceuticalsAdherex Technologies, Inc.
Jan 27, 20097,481,999Compounds and methods for modulating OB-cadherin-mediated functionBiotechnologyAdherex Technologies, Inc.
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Nov 13, 20252025/0345435ANHYDROUS SODIUM THIOSULFATE AND FORMULATIONS THEREOFPharmaceuticalsFennec Pharmaceuticals, Inc.
Oct 24, 20242024/0350637Anhydrous Sodium Thiosulfate and Formulations ThereofPharmaceuticalsFennec Pharmaceuticals, Inc.
Jul 4, 20242024/0216511THERAPEUTIC USES FOR SODIUM THIOSULFATE FORMULATIONSPharmaceuticalsFennec Pharmaceuticals, Inc. · patent 12,311,026 granted from it
May 23, 20242024/0165237Anhydrous Sodium Thiosulfate and Formulations ThereofPharmaceuticalsFennec Pharmaceuticals, Inc.
Feb 8, 20242024/0042036ANHYDROUS SODIUM THIOSULFATE AND FORMULATIONS THEREOFPharmaceuticalsFennec Pharmaceuticals, Inc.
Jun 29, 20232023/0201351ANHYDROUS SODIUM THIOSULFATE AND FORMULATIONS THEREOFPharmaceuticalsFennec Pharmaceuticals, Inc.
Jun 29, 20232023/0201350ANHYDROUS SODIUM THIOSULFATE AND FORMULATIONS THEREOFPharmaceuticalsFennec Pharmaceuticals, Inc.
Jun 29, 20232023/0201349ANHYDROUS SODIUM THIOSULFATE AND FORMULATIONS THEREOFPharmaceuticalsFennec Pharmaceuticals, Inc.
May 25, 20232023/0158145ANHYDROUS SODIUM THIOSULFATE AND FORMULATIONS THEREOFPharmaceuticalsFennec Pharmaceuticals, Inc. · patent 11,964,018 granted from it
Mar 30, 20232023/0094886ANHYDROUS SODIUM THIOSULFATE AND FORMULATIONS THEREOFPharmaceuticalsFennec Pharmaceuticals, Inc. · patent 11,992,530 granted from it
What it applied for, 2024 to 2025: Pharmaceuticals 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 FENC · research, not advice