| Year | Detail |
| 1902 |
Air Liquide was established. |
| 1906 |
Expanded its businesses to Belgium. |
| 1907 |
Expanded its businesses to Japan. |
| 1909 |
Expanded its businesses to Spain and Italy. |
| 1911 |
Expanded its businesses to Canada. |
| 1916 |
Expanded its businesses to U.S. |
| 1952 |
Air Liquide brought an Cryogenic revolution. |
| 1962 |
Started Space adventure. |
| 1985 |
Air Liquide started supplying Gases to semiconductor industry. |
| 1995 |
It became specalist in Healthcare industry. |
| 2000 |
Air Liquide had invested a lot to expand its foot hold in China. |
| 2007 |
Acquired Lurgi. |
| 2013 |
Air Liquide started investing in Start-ups. |
| 2015 |
Started building Hydrogen fueling stations in countries like France, Japan, Germany and the U.S. |
| 2016 |
Acquired Airgas. |
| 2018 |
Inaugurated Paris Innovation Campus. |