Patents
21.Tsenkova, R.: Method and instrumentation for NIR analysis, Japanese patent No 4710012 of April 1st, 2011.

20.Tsenkova, R.: Visible / near infrared spectroscopy and its device, USA Patent No 7570357, 2009.

19.Ito, H., Tsenkova, R., Shiraishi, S.: Method and device for non-destructive analysis of ingredients in vegetables using near infrared spectroscopy, Japanese patent No 513599, 2006.

18.Tsenkova, R., Kuroki, S., Ikuta, K., Wada, T.: Method and device for measuring threshold of cell count for diagnosis of mastitis, Japanese patent No 284537, 2005

17. Tsenkova, R., Kusumoto, S., Isomura, T.: Method for Analysis of visible and near-infrared spectroscopy, Japanese patent No 291704, 2005

16.Tsenkova, R.: Method and device for visible and near infrared spectroscopic analysis, Japanese patent No 505585, 2005

15.Ito, H., Tsenkova, R., Shiraishi, S.: Method and device for non-destructive analysis of ingredients in vegetables using near infrared spectroscopy, Japanese patent No 145828, 2004.

14.Tsenkova, R.: Method and device for diagnosis of mastitis using visible and/or near infrared spectroscopy, Japanese patent No 3574851, 2004

13.Tsenkova, R.: Method and device for visible and near infrared spectroscopic analysis, Japanese patent No 16680, 2004

12.Tsenkova, R., Murayama, K.: Method and apparatus for detecting mastitis by using visible light and/or near infrared light, Australian patent No 200121137, 2004.

11.Tsenkova, R.: Method for Analysis of visible and near-infrared spectroscopy, Japanese patent No 065975, 2004

10.Sakudo A,Tsenkova, R.,Ikuta K., Onodera, T.: NIRS for diagnosis of HIV and other viruses and prion disease. Japanese patent No 329249, 2004.

9.Tsenkova, R.: Method and apparatus for non-destructive analysis of nitrates in leafs using NIRS, Japanese patent No 145828, 2004

8.Tsenkova, R. “ Method and apparatus for detecting mastitis by using visible light and/or near infrared light: USA Patent No6748251 of 6 August, 2004.

7.Tsenkova, R., Kanazawa, K.: Method for Oxidative Stress Diagnosis, Japanese Patent No 284449, 2003.

6.Tsenkova, R. “ Method and apparatus for detecting mastitis by using visible light and/or near infrared light: New Zealand Patent No 515730

5.Tsenkova, R. “ Method and apparatus for detecting mastitis by using visible light and/or near infrared light: No 515725 of 12 May, 2003.

4.Tsenkova, R. “ Method and apparatus for detecting mastitis by using visible light and/or near infrared light: Japanese Patent No 3472836 of 19 September, 2003,

3.Tsenkova, R. “ Method and apparatus for detecting mastitis by using visible light and/or near infrared light: Australia Patents AU No 200141138.

2.Tsenkova, R. N.: Instrument for cow’s mastitis diagnosis, Bulgarian Patent No 76572,(Bulg.), 1987.

1.Kirilin, N., Tsenkova, R.: Express analyzer for subclinical mastitis diagnosis”. Bulgarian Patent No 51016, (Russia.), 1981.