1980–1995: Sir Antony Pilkington (1935–2000) 1995–2006: Sir Nigel Rudd (born 1946) Operations Pilkington has developed a self-cleaning coated float glass product, called Pilkington Activ. This self-cleaning glass has a coating which uses a method of photocatalysis to break down organic dirt with sunlight. The dirt is then washed away by the rain during a hydrophilic process. References Notes Bibliography External links Official UK site Pilkington energiKare – Energy Efficient Glazing Glassmaking companies of the United Kingdom Companies based in Merseyside St Helens, Merseyside Manufacturing companies established in 1826 1826 establishments in England Companies formerly listed on the London Stock Exchange Former defence companies of the United Kingdom Sumitomo Group British companies established in 1826 British subsidiaries of foreign companies 2006 mergers and acquisitions