Currently vaccine companies such as the German Curevac (which is the vaccine company Trump famously tried to buy) is being held back by lack of core ingredients which are under American export bans.
The US still upholds the export bans setup by the Trump administration. Biden can just revoke those. Yet he promotes the idea of waivering vaccine patents knowing well how hard that would be to do in practice.
And exactly how is it supposed to work? Will Pfizer no longer have to pay license fees to BioNTech?