| 3134643 | Process for the concentration of isotopes of nitrogen and oxygen in nitric oxide | |||
| 2772952 | Gas generator and method | |||
| 2623812 | Production of hydrogen | |||
| 2404599 | Synthesis of paraffinic hydrocarbons by reacting an alkyl aluminum halide with an aliphatic halide | |||
| 2334211 | Gas generator | |||
| 2114144 | Gas-producing apparatus | |||
| 1729043 | Process for the gradual production of gases | |||
| 1700578 | Production of hydrogen sulphide | |||
| 0977442 | N/A | |||
| 0651684 | N/A | |||
| 0646404 | N/A |