https://archive.ph/CeGzj :US6372224B1 ( Timothy J. Miller, Sharon Klepfer, Albert Paul Reed, Elaine V. Jones. Assignee Pfizer Inc.) Year 2000 (spike protein vaccine for Canine corona virus)

https://archive.ph/Pdnkv :US7220852B1 - Coronavirus isolated from humans - filed Apr. 12 2004

https://archive.ph/uKOBb :US7279327 METHODS FOR PRODUCING RECOMBINANT CORONAVIRUS (SARS-Covid)

https://archive.ph/N0Jor :US7151163: Antiviral agents for the treatment, control and prevention of infections by coronaviruses filed Apr. 28 2004

https://archive.ph/L6p3D :US9193780 AMINO ACID SEQUENCES DIRECTED AGAINST ENVELOPE PROTEINS OF A VIRUS AND POLYPEPTIDES COMPRISING THE SAME FOR THE TREATMENT OF VIRAL DISEASES filed June 5 2008 Assignee Ablynx NV

https://archive.ph/CeGzj :US6372224B1 ( Timothy J. Miller, Sharon Klepfer, Albert Paul Reed, Elaine V. Jones. Assignee Pfizer Inc.) Year 2000 (spike protein vaccine for Canine corona virus)

https://archive.ph/Pdnkv :US7220852B1 - Coronavirus isolated from humans - filed Apr. 12 2004

https://archive.ph/uKOBb :US7279327 METHODS FOR PRODUCING RECOMBINANT CORONAVIRUS (SARS-Covid)

https://archive.ph/N0Jor :US7151163: Antiviral agents for the treatment, control and prevention of infections by coronaviruses

https://archive.ph/L6p3D :US9193780 AMINO ACID SEQUENCES DIRECTED AGAINST ENVELOPE PROTEINS OF A VIRUS AND POLYPEPTIDES COMPRISING THE SAME FOR THE TREATMENT OF VIRAL DISEASES filed June 5 2008 Assignee Ablynx NV