The United States Patent and Trademark Office has issued a patent for the protection of Contamac's proprietary silicone hydrogel polymer materials, including the flagship Definitive contact lens product.
The patent covers polymer composition, formulation design, production and contact lens manufacturing, including the provision of an indication for finished lenses resulting from the production process. The Definitive material (800,000 units sold worldwide) was developed for speciality contact lenses. It has a high water content and low modulus for comfort throughout the day.
Contamac director Robert McGregor said: 'Our research and development team deserve a special mention as without their dedication and expertise this patent award would not be possible.'
Register now to continue reading
Thank you for visiting Optician Online. Register now to access up to 10 news and opinion articles a month.
Register
Already have an account? Sign in here