US 12,167,996 B2
Anti-viral composition
Huw Evans, Chester (GB); Christopher Plummer, Chester (GB); Matias Luck, Wirral (GB); Rose Elizabeth Piercy McInerney, Chester (GB); and Lauren Mairead Burns, Chester (GB)
Assigned to BYOTROL LIMITED, Manchester (GB)
Appl. No. 17/311,031
Filed by Byotrol PLC, Manchester (GB)
PCT Filed Dec. 5, 2019, PCT No. PCT/GB2019/053439
§ 371(c)(1), (2) Date Jun. 4, 2021,
PCT Pub. No. WO2020/115489, PCT Pub. Date Jun. 11, 2020.
Claims priority of application No. 1819849 (GB), filed on Dec. 5, 2018.
Prior Publication US 2022/0023254 A1, Jan. 27, 2022
Int. Cl. A61K 31/357 (2006.01); A01N 31/16 (2006.01); A01N 43/32 (2006.01); A01N 65/03 (2009.01); A01P 1/00 (2006.01); A61K 31/05 (2006.01); A61K 31/085 (2006.01); A61K 36/03 (2006.01); A61P 31/12 (2006.01)
CPC A61K 31/357 (2013.01) [A01N 31/16 (2013.01); A01N 43/32 (2013.01); A01N 65/03 (2013.01); A01P 1/00 (2021.08); A61K 31/05 (2013.01); A61K 31/085 (2013.01); A61K 36/03 (2013.01); A61P 31/12 (2018.01); A61K 2236/333 (2013.01); A61K 2236/55 (2013.01)] 17 Claims
 
1. An extract of Ascophyllum nodosum, wherein the extract comprises from 60% to 95% by weight based on the dry weight of the extract of one or more phlorotannins and wherein at least 70% by weight of the one or more phlorotannins based on the dry weight of the phlorotannins in the dry extract has a molecular mass of from about 1000 g/mol to about 3000 g/mol.