Karl Von Linde
(11 June 1842 – 16 November 1934).
Professor Dr. Karl von Linde of Munich was a German engineer who developed refrigeration and gas separation technologies. 
1842 Born son of Friedrich Linde, a Lutheran minister, and his wife Helene (nee Grimm)
Studied at the Swiss Federal Institute of Technology but was expelled for participation in student protests.
Worked for several years as an engineer before joining the faculty at Berlin Technical University. While teaching there he was approached by a friend who worked at a brewery, who asked Linde to develop a reliable system of refrigeration. This became the work that dominated the rest of Linde's life.
1873 invented the first portable compressor refrigerator, using methyl ether refrigerant
1876 he designed a more reliable system, the first practical ammonia-compressor driven refrigerator.
1878 he established the Society for Lindes Ice Machines, now Linde AG
1885 Established Linde British Refrigeration Co.
1894 he developed a process using the Joule-Thomson effect to liquefy gases
1896 Produced liquid air in mass quantities.
1902 he and his staff at Linde AG developed a system that separates liquid oxygen and nitrogen from liquefied air.
Sources of Information
- NNDB