US Patent

US9066942 — Oral dosage forms for oxygen-containing active agents and oxyl-containing polymer

Method of Use · Assigned to Spriaso LLC · Expires 2032-01-03 · 6y remaining

Vulnerability score 68/100 Moderate — design-around opportunities exist

What this patent protects

This patent protects pharmaceutical tablets that combine a tri-oxygen-containing active agent with a second active ingredient for oral administration.

USPTO Abstract

The disclosed invention is drawn to pharmaceutical tablets that provide delivery of active agents having at least three oxygen-containing groups, as well as a second active ingredient. Non-limiting examples of three oxygen-containing group active agents include guaifenesin, codeine, hydrocodone, and their pharmaceutically acceptable salts. In one embodiment, a pharmaceutical tablet for oral administration once every 12 hours is provided. The tablet includes a first active agent that is a tri-oxy active agent, a second active agent, and a release rate controlling non-ionic oxyl-containing hydrophilic polymer. The total oxyl content of the hydrophilic polymer in the tablet is about 4×10 −4 moles to about 2.0×10 −3 moles.

Drugs covered by this patent

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.

CodeDescriptionDrug
U-1716 — Tussionex Pennkinetic

Patent Metadata

Patent number
US9066942
Jurisdiction
US
Classification
Method of Use
Expires
2032-01-03
Drug substance claim
No
Drug product claim
No
Assignee
Spriaso LLC
Source
FDA Orange Book + USPTO grounding via Google Patents

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.

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