| W T G Mortien (Dentist) | 1819-1868 | USA | Father of Anesthesia | Gave first Anesthesia (Ether) in the World |
| John Snow (Anesthesiologist) | 1813-1858 | England | First given Chloroform and extensively studied it | Located source of Cholera outbreak |
| James Young Simpson (Obstetrician) | 1811-1870 | Scotland England | Father of Obstetric Anaesthesia | Introduced Chloroform |
| Ivan W Magill (Anesthesiologist) | 1888-1986 | Irish | Inventor of Magill’s ET tubes, Forceps & Circuits | Magill’s Straight laryngoscope Blades |
| Sir Robert McIntosh (Anesthesiologist) | 1897-1989 | New Zealand England | Inventor of McIntosh Laryngoscopes and Blades | Most widely used in the world |
| Mapleson W W (Anesthesiologist) | 1926-2018 | England | Inventor of Mapleson circuit A, B, C, D, E and F | First described Anesthesia circuits |
| Henry Boyle (Anesthesiologist) | 1875-1941 | Barbados | Inventor of Boyle’s Machine of Anesthesia & Vaporiser | Popular Textbook Practical Anaesthetics |
| Francis John Murphy (Anesthesiologist) | 1900-1972 | USA | Inventor of Murphy ET Tube & Murphy eye on ET Tube | Most widely used ET tubes |
| Gordon Jackson Rees (Anesthesiologist) | 1918-2001 | England | Inventor of Jackson-Rees Pediatric Anesthesia Circuit | Father of Pediatric Anesthesia |
| Ralph M Water (Anesthesiologist) | 1883-1979 | USA | Inventor of oropharyngeal airway & Bag (Water’s airway) | First Endobronchial Anaesthesia |
| John Scott Halden (Physician) | 1860-1936 | Scottish England | Inventor of Oxygen Therapy & Capnography | Haldane effect in Haemoglobin |
| J A Bain (Anesthesiologist) | 1945- | England | Introduced Bain Circuit (1972) Widely used since 40 years | Modification of Mapleson D & E |
| Paul Janssen (Physician) | 1926- | Belgium USA | Inventor of Droperidol, Etomidate, Fentanyl | Founder of Janssen Pharmaceutical |
| Ronald D Miller (Anesthesiologist) | 1939- | USA | Most Popular for Textbook of Anesthesia in the world | Miller’s Anesthesia |
| Joel A Kaplan (Anesthesiologist) | | USA | Written famous Kaplan’s Cardiac Anesthesia Textbook | Father of Cardiac Anesthesia |
| Sheshgiri Malampatti (Anesthesiologist) | 1941- | India | Inventor of most popular Malampatti Score | Retired in 1971 From Andhra Pradesh |
| Archie Brain (Anesthesiologist) | 1942- | Japan England | Inventor of LMA and LMA classic | 13 patents in Anaesthesiology |
| Takno Aoyagi (Engineer) | 1936-2020 | Japan | Inventor of Pulse Oximeter & Pulse Spectrophotometer | Service in Nihon Kohden |
| John Baird Glen (Physician) | 1940- | England | Inventor of Syringe Infusion Pump & Modern TIVA Propofol | Inventor of Propofol |
| Thomas Hammerling (Anesthesiologist) | | Canada | Inventor & Father of Robotic & Tele Anesthesia Practice | McGill University Montreal, Canada |
| Muhammed Aslam Nasir (Anesthesiologist) | 1961- | Pakistan | Inventor of V Gel (Human) & V Gel (Animal) SGD | 10 patents in Anaesthesiology |
| August Bier (Surgeon) | 1861-1949 | Germany | Inventor of Spinal and IV regional Anesthesia | Pioneer in Sports Medicine |
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