---
title: "Dr Leonard Keith Pattenden — Ownership Dossier"
canonical: https://whiteintel.dev/entity/c9724e45-8791-40b6-8014-c5c00aabc540
json: https://whiteintel.dev/api/public/dossier/c9724e45-8791-40b6-8014-c5c00aabc540
identifier: psc:v8xaX5Ru3cyHB_bJtlyvbvrNxTw
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Dr Leonard Keith Pattenden

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `psc:v8xaX5Ru3cyHB_bJtlyvbvrNxTw`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/c9724e45-8791-40b6-8014-c5c00aabc540  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/c9724e45-8791-40b6-8014-c5c00aabc540  

## Ownership & control

### Holdings / subsidiaries

- **CMC BIOPHARMA LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/f38476ca-e471-52b2-9860-66e4def858ac

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Dr Leonard Keith Pattenden**. Human view: https://whiteintel.dev/entity/c9724e45-8791-40b6-8014-c5c00aabc540 · Structured JSON: https://whiteintel.dev/api/public/dossier/c9724e45-8791-40b6-8014-c5c00aabc540._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._