What are your arguments? He is right the US is first to invent. I think he is wrong in the claim to have invented it earlier bit is easy, the repo commit time

What are your arguments? He is right the US is first to invent. I think he is wrong in the claim to have invented it earlier bit is easy, the repo commit time line(and mailing list emails etc.) would give a firm date which the claiming party would have to have proof of inventing before. That is to say it isn't like a criminal case where only one side has to prove anything both parties have to prove invention dates.