Litigation Across the Nation?

Both Moderna and Pfizer made billions of dollars from sales of their Covid19 vaccines. Moderna is now suing Pfizer for patent infringement (https://www.theguardian.com/us-news/2022/aug/26/moderna-sues-pfizer-biontech-covid-vaccine-patent-infringement). Moderna is also suing Pfizer's German partner, BioNTech, claiming that they copied its RNA technology. Moderna maintain 'their' technology was developed years before the pandemic, when searching for a cure for MERS. Pfizer is also being sued, on different grounds, by other US vaccine producers. I suppose the US lawyers now want their cut? It seems a rather sad postscript to a successful application of science to attempt to deal with a serious public health emergency.