History
| 1954 | Foundation Planning of central sterilization and operation room departments in hospitals, production and distribution of stainess steel modules and consumables for sterilization |
| 1986 | Production of own gke indicators |
| 1992 | Development, production and sales of the whole biological and chemical indicator range. Stop of all other activities. |
| 1995 | gke offers new services: Validation of sterilization and cleaning/disinfection processes as notified body expert. Resistance determination of biological indicators for steam, EO and formaldehyde sterilization processes. Test laboratory for sterilization processes and indicators |
| 2001 | New printing equipment for manufacturing of all types of gke indicators and other print products, 2004 extension to UV-flexo and rotation silk screen printing |
| 2003 | Development and introduction of a new patented test device concept, the Compact-PCD (Process challenge device) for use as BDS-Test and batch monitoring |
| 2003-2006 | Further development of all indicator colours with UV-curing binders and adaption to the new standard series EN ISO 11140 |
| 1998-2006 | Construction of two new production, office and storage facilities with altogether 3.500 m² |
| 2006-2007 | Development and introduction of the first test systems for special loads worldwide (gke Tattoo-BMS, gke Dental-BMS) Change of the chemical indicator production to economical printing |
| 2010 | Optimization of the chemical indicator production |
| 2008-2011 | Development of cleaning indicators and the first cleaning test method in Germany reproducibly |
| 2011 | Opening of a distribution office in Beijing, P.R. China |
| 2011-2012 | Worldwide introduction of cleaning process monitoring indicators (CPI) for WDs, ultrasonic basins and bedpan washers Development and production of Instant-SCBIs |
| 2014-2015 | Building of 10.000 m² new production, laboratory and office facilities |
| 2016 | Expanding biological and chemical indicator production in the new building |
| 2017 | Expanding the cleaning process monitoring indicator (CPI) marketing, OEM sales to 3 companies Steam SCBI 510(k) FDA USA approval |
| 2018 | Development of new PCD design and VHPO Resistometer |