GB Patent

GB9616253D0 — Preparation of narcotic analgesics

Assigned to Johnson Matthey PLC · Expires 1996-09-11 · 30y expired

What this patent protects

A novel process for preparing narcotic analgesics such as hydrocodone and hydromorphone using catalytic amounts of homogeneous organometallic complexes is disclosed.

USPTO Abstract

A novel process for preparing narcotic analgesics such as hydrocodone and hydromorphone using catalytic amounts of homogeneous organometallic complexes is disclosed.

Drugs covered by this patent

Patent Metadata

Patent number
GB9616253D0
Jurisdiction
GB
Classification
—
Expires
1996-09-11
Drug substance claim
No
Drug product claim
No
Assignee
Johnson Matthey PLC
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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