Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7485276 | Method for the removal of Noand NO from the tail gas in nitric acid production A process is described for reducing the NOx concentration and N2O concentration from the residual gas from nitric acid production. The process encompasses the passing of the residual gas leaving the absorption column, prior to entry into the re... | 02/03/2009 |
| 7435983 | Device for injecting electromagnetic radiation into a reactor Device for injecting electromagnetic radiation into a reactor and a reactor comprising this device A device for injecting electromagnetic radiation into a reactor for carrying out free-radical gas-phase reactions and a reactor comprising such a device are des... | 10/14/2008 |
| 7393512 | Denitrification method A process for reducing the content of NOx and N2O in gases, in particular in process gases and offgases, which comprises the measures: a) addition of at least one nitrogen-containing reducing agent to the NOx- and N2O-cont... | 07/01/2008 |
| 7309471 | Method for producing unsaturated halogenic hydrocarbons and device suitable for use with said method An apparatus for producing ethylenically unsaturated aliphatic halogenic hydrocarbons by thermal cleavage of saturated aliphatic halogenic carbons using an apparatus that introduces an educt gas stream into a reactor which includes at least one supply conduit which ... | 12/18/2007 |
| 5154752 | Suppression of fines during the granulation of ammonium nitrate The formation of dust or fines may be suppressed, during the granulation of ammonium nitrate having a nitrogen content of 28% to 34.5%, by a process in which ammonium nitrate is initially granulated to form a raw granulate containing fines, and thereafter... | 10/13/1992 |
