The object
Richard Palmer co-invented D3O, a flexible impact-protection material that remains compliant in ordinary movement and stiffens on impact. The manufactured material is incorporated into protective products for motorsport, sports, military and consumer-device applications, providing an alternative to rigid armour panels.
What Richard did
Co-invented flexible impact-protection material that hardens under sudden force with Philip Green.
Why it matters
D3O made flexible, impact-hardening protective components a recognised product category across motorcycle, sport and other protective equipment.
Living-status check
The EPO's 2026 European Inventor Network activity page lists two Palmer-led UK activities, providing current person-specific evidence, while a February 2026 D3O factory report identifies Palmer and Green as the material's creators.