US8754065 — Tenofovir alafenamide hemifumarate
Method of Use · Assigned to Gilead Sciences Inc · Expires 2032-08-15 · 6y remaining
What this patent protects
This patent protects a hemifumarate form of tenofovir alafenamide, used in antiviral therapy.
USPTO Abstract
A hemifumarate form of 9-[(R)-2-[[(S)-[[(S)-1-(isopropoxycarbonyl)ethyl]amino]phenoxyphosphinyl]methoxy]propyl]adenine (tenofovir alafenamide), and antiviral therapy using tenofovir alafenamide hemifumarate (e.g., anti-HIV and anti-HBV therapies).
Drugs covered by this patent
- bictegravir-sodium (BICTEGRAVIR SODIUM)
- Emtriva (EMTRICITABINE) · Gilead Sciences
- Tybost (COBICISTAT) · Gilead Sciences
- tenofovir-alafenamide-fumarate (TENOFOVIR ALAFENAMIDE FUMARATE)
FDA Patent Use Codes
When a patent is method-of-use, FDA lists it once per applicable indication ("U-code"). Each U-code carves out a specific therapeutic use that generic filers must either license or design around.
| Code | Description | Drug |
|---|---|---|
U-257 |
— | bictegravir-sodium |
U-257 |
— | bictegravir-sodium |
U-1663 |
— | Emtriva |
U-257 |
— | Tybost |
U-999 |
— | tenofovir-alafenamide-fumarate |
U-2352 |
— | Tybost |
U-257 |
— | Emtriva |
U-1259 |
— | Emtriva |
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
Track this patent
Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.