Certificates
• BSC-Oko Garantie GmbH – Confirmation of Compatibility for the use of inputs in organic agriculture
• State SIA “Latvian Environment, geology and meteorology centre”, Environment Laboratory, Test Report
• National Diagnostic Center of Food and Veterinary Service, Laboratory of Food and Environmental Investigations, Test Report (pesticides and radiology)
• World Bank programme CORAF FERTORAO certification field trials at Senegal, Mali, Burkina Faso, Cote di voire, Ghana at 2016-2019
EHT Engineering Ltd has exclusive licenses for using patented Inventions.
1. Canadian Patent No. 2,773,022 date 2017/01/24. Process of Manufacturing of Biologically Active Humic Products.
2.US Patent No. US 8,758,473 date Jun.24, 2014.Process of Manufacturing of Biologically Active Humic Products.
3.Patent of Latvia No.14647 date 20.03.2013. Process of Manufacturing of Biologically Active Humic Products.
4.Paent of Russia No.2472761 date 04.04.2011. Process of Manufacturing of Biologically Active Humic Products.
5. Patent of Latvia No.14415 no 17.03.2010. Device for silt deposits mining (rock intake device)
6.Patent of Latvia No.14324 date 03.08.2010. Method and device for sapropel based ameliorative mixtures production
7.Patent of Russia No.2418914 date 22.03.2010. Device for silt deposit mining
8.Patent of Latvia No.14217 date 04.02.2010. Soil features Improvement product
9.Patent of Russia No.2407724 date 02.06.2009. Soil features improvement product
10. Patent of Latvia No.13764 date 20.09.2008. Device for reservoirs cleaning from silt deposit and sapropel mining.
11.Patent of Russia No.2348762 date 29.06.2007. Device for reservoirs cleaning from silt deposits and sapropel mining
12.Patent of Russia No.2336253 date 16.02.2007. Method of obtaining sapropelic fertilizers
13.Patent of Latvia No.13629 date 20.12.2007. Method of fertilizers manufacturing using sapropel.
14.Patent of Russia No.2295611 date 12.11.2004. Floating installation for rock deep – water extraction (with air recirculation)
15.Patent of Egypt No. 23240 date 26.11.2001. Method for extracting deposits and conveying to dry land and complex for carrying said method into effect.
16. Patent of Egypt No.22684 priority date 5.10.2001. Method for extracting deposits from the bottom of a water pool and conveying said deposits to dry land, and complex for carrying said method into effect.
17. Patent of Egypt No.22624 date 2.12.2000. Method for extracting deposits from the bottom of a water pool and conveying said deposits to dry land, and complex for carrying said method into effect.
United States Patent No. 8758473B2
June 24, 2014
Process of manufacturing of biologically active humic Products
Marchant Registration Certificate
2002
“EHT Engineering” SIA was established in 2002 and since that has a great track record and scientific achievements proved by executed projects.
Patent of Russia No.2745146
15.10.2020
Taking into account the accumulated experience, a new technology and device was developed and patented.
Device for cleaning bodies of water of silt deposits and extracting sapropel at natural moisture content.
Patent of Latvia No.15727
20.04.2023.
Taking into account the accumulated experience, a new technology and device was developed and patented.
Device for cleaning bodies of water of silt deposits and extracting sapropel at natural moisture content.
CERTIFICATE OF REGISTRATION Nº 1069538
October 11, 2010
EHT Engineering Ltd owned by BioDeposit Trademark, is registered at the International Bureau of WIPO under Madrid Agreement and Protocol.