Table 4.

Recent patents of some bioenhancers

Name of bioenhancer	Patent number	Assignee	Date	Title
Piperine	US5744161A	Sabinsa Corporation	4 April 1998	Use of piperine as a bioavailability enhancer
Piperine	USOO5536506A	Sabinsa Corporation	16 July 1996	Use of piperine to increase the boavailability of nutritional compounds
Zingiber officinale	WO2003049753A1	Council of Scientific and Industrial Research	19 June 2003	Bioavailability enhancing activity of Zingiber officinale Linn. and its extracts/fractions thereof
Cuminum Cyminum	WO2003075685A2	Council of Scientific and Industrial Research	18 September 2003	Bioavailability/bioefficacy enhancing activity of cuminum cyminum and extracts and fractions thereof
Fenugreek	US7338675B2	TSI Group Ltd Hong Kong	4 March 2008	Fenugreek seed bio‐active compositions and methods for extracting same
Fenugreek	WO2005084323A2	Technical Sourcing International, Inc.	15 September 2005	Compositions of bio‐active compounds from fenugreek seed and methods for producing same
Star anise	CN105713732B	Shandong Agricultural University	17 March 2020	Extraction method of star anise oil