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