1917 - Walter Kidde Company founded in United States;
1933 - Graviner Limited founded in Colnbrook, England; created and manufactured smoke detection systems;
1935 - Walter Kidde Company Limited founded in Colnbrook designing and manufacturing fire detection and extinguishing systems;
1951 - Graviner Limited begin manufacture of oil mist detection systems;
1960s - The Walter Kidde Co. Ltd. located at Lux Works, Belvue Road, Northolt, England
1974 - Dunford Hepburn founded in Newcastle, England relocates to Cramlington and becomes established in the design and manufacture of fire control panels;
1980 - Walter Kidde plc started to manufacture Alarmline linear heat detection systems;
1988 - Hartnell Microelectronics founded in Cramlington design and manufacture High Sensitivity Smoke Detection systems;
1989 - Kidde Graviner formed by merger of Walter Kidde plc and Graviner Limited (parent company Williams Holdings plc);
1991 - Hartnell Microelectronics acquired by Kidde and re-named Kidde Hartnell.
1993 - Kidde Graviner specialise in aerospace and military vehicle sectors; industrial, rail and marine business becomes Kidde Fire Protection based in Northolt, London;
1993 - Kidde Fire Protection acquires Dunford Hepburn; relocates to Kidde Harnell site in Cramlington, Northumberland, England;
2000 - Williams plc de-merges into Kidde plc and Chubb plc. Kidde Fire Protection becomes part of Kidde plc.
2002 - Kidde Fire Protection becomes part of Kidde Products Division of Kidde Fire Protection Services Limited. Kidde Fire Protection staff at Northolt re-locate to Thame, Oxfordshire, England.
2003 - Kidde Fire Protection electronics facility at Cramlington re-locate to Peterlee, County Durham, England.
2005 - Kidde plc acquired by United Technologies Corporation and combined with Chubb to form UTC Fire & Security; headquarters in Connecticut, United States.
2006 - Kidde Fire Protection moves to new Electronics Technology Centre at Seaham, County Durham, England.
2008 - Airsense Technology (manufacturer of Aspirating Smoke Detection equipment, based in Stevenage, Hertfordshire, England) acquired by UTC Fire & Security, becomes part of Kidde Products Limited.
Kidde Fire Protection manufacture detection and alarm products at Seaham, County Durham and Stevenage, Hertfordshire; and fire suppression systems at Bentham, North Yorkshire. It provides product sales and customer support from Thame, near Oxford.