Siga Drug Patent Portfolio
Siga owns 1 orange book drug protected by 11 US patents Given below is the list of Siga's drug patents along with their expiration dates.
| Drug Patent Number | Drug Patent Title | Drug Patent Expiry | Status |
|---|---|---|---|
| US11890270 | Polymorphic forms of ST-246 and methods of preparation | 08 Aug, 2032 | Active |
| US7737168 | Compounds, compositions, and methods for treatment and prevention of orthopoxvirus infections and associated diseases | 04 Sep, 2031 | Active |
| US10576165 | ST-246 liquid formulations and methods | 02 Aug, 2031 | Active |
| US9233097 | ST-246 liquid formulations | 02 Aug, 2031 | Active |
| US9907859 | ST-246 liquid formulations and methods | 02 Aug, 2031 | Active |
| US12433868 | Polymorphic Forms Of St-246 And Methods Of Preparation | 23 Mar, 2031 | Active |
| US9339466 | Polymorphic forms of ST-246 and methods of preparation | 23 Mar, 2031 | Active |
| US8039504 | Chemicals, compositions, and methods for treatment and prevention of orthopoxvirus infections and associated diseases | 23 Jul, 2027 | Active |
| US8124643 | Compounds, compositions and methods for treatment and prevention of orthopoxvirus infections and associated diseases | 18 Jun, 2024 | Expired |
| US8530509 | Compounds, compositions and methods for treatment and prevention of orthopoxvirus infections and associated diseases | 18 Jun, 2024 | Expired |
| US8802714 | Compounds, compositions and methods for treatment and prevention of orthopoxvirus infections and associated diseases | 18 Jun, 2024 | Expired |
Latest Legal Activities on Siga's Drug Patents
Given below is the list of recent legal activities going on the following drug patents of Siga.
| Activity | Date | Patent Number |
|---|---|---|
 | ||
| Dispatch to FDC | 11 Sep, 2025 | US12433868 |
| Application Is Considered Ready for Issue | 11 Sep, 2025 | US12433868 |
| Issue Fee Payment Received | 09 Sep, 2025 | US12433868 |
| Issue Fee Payment Verified | 09 Sep, 2025 | US12433868 |
| Payment of Maintenance Fee, 8th Yr, Small Entity | 08 Sep, 2025 | US9907859 |
| Mail Notice of Allowance | 18 Jun, 2025 | US12433868 |
| Notice of Allowance Data Verification Completed | 17 Jun, 2025 | US12433868 |
| Interview Summary - Examiner Initiated - Telephonic | 09 Jun, 2025 | US12433868 |
| Change in Power of Attorney (May Include Associate POA) | 09 May, 2025 | US12433868 |
| Maintenance Fee Reminder Mailed | 28 Apr, 2025 | US8530509 |
| Date Forwarded to Examiner | 21 Mar, 2025 | US12433868 |
| PARALEGAL OR ELECTRONIC TERMINAL DISCLAIMER APPROVED | 18 Mar, 2025 | US12433868 |
| Response after Non-Final Action | 17 Mar, 2025 | US12433868 |
| Terminal Disclaimer Filed | 17 Mar, 2025 | US12433868 |
| Electronic Review | 23 Dec, 2024 | US12433868 |
Siga's Family Patents
Siga drugs have patent protection in a total of 22 countries. It's US patent count contributes only to 27.3% of its total global patent coverage. 2 countries have all of their patents expired or invalidated which has opened up potential generic launch opportunities in these countries. Click
below to unlock the full patent family tree.
Siga Drug List
Given below is the complete list of Siga's drugs and the patents protecting them.
1. Tpoxx
Tpoxx is protected by 11 patents, out of which 3 have expired. Check out its patent list below.
| Drug Patent Number | Drug Patent Title | Drug Patent Expiry | Status |
|---|---|---|---|
| US11890270 | Polymorphic forms of ST-246 and methods of preparation |
08 Aug, 2032
(6 years from now)
| Active |
| US7737168 | Compounds, compositions, and methods for treatment and prevention of orthopoxvirus infections and associated diseases |
04 Sep, 2031
(5 years from now)
| Active |
| US10576165 | ST-246 liquid formulations and methods |
02 Aug, 2031
(5 years from now)
| Active |
| US9233097 | ST-246 liquid formulations |
02 Aug, 2031
(5 years from now)
| Active |
| US9907859 | ST-246 liquid formulations and methods |
02 Aug, 2031
(5 years from now)
| Active |
| US12433868 | Polymorphic Forms Of St-246 And Methods Of Preparation |
23 Mar, 2031
(5 years from now)
| Active |
| US9339466 | Polymorphic forms of ST-246 and methods of preparation |
23 Mar, 2031
(5 years from now)
| Active |
| US8039504 | Chemicals, compositions, and methods for treatment and prevention of orthopoxvirus infections and associated diseases |
23 Jul, 2027
(1 year, 4 months from now)
| Active |
| US8124643 | Compounds, compositions and methods for treatment and prevention of orthopoxvirus infections and associated diseases |
18 Jun, 2024
(1 year, 9 months ago)
| Expired |
| US8530509 | Compounds, compositions and methods for treatment and prevention of orthopoxvirus infections and associated diseases |
18 Jun, 2024
(1 year, 9 months ago)
| Expired |
| US8802714 | Compounds, compositions and methods for treatment and prevention of orthopoxvirus infections and associated diseases |
18 Jun, 2024
(1 year, 9 months ago)
| Expired |
Discover which of these patents contain the active ingredient(API) of the drug, their family patents, along with litigation and legal activity details of these patents on Tpoxx's drug page
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