My solution for R&D teams and commissioned work is that your contract with employees would cover that. You'd require the inventor to grant the company exclusive license to the product. Also patents are attributed to whoever submits them, and multiple people at the company can share credit for the invention. You'd make it understood what will happen in employment contracts.

It only falls apart in the unlikely scenario that all the listed creator(s) drop dead shortly after the invention, before the company had time to recoup their investment.

I think S. Korea had something similar, but government corruption and greed got the best of them. Samsung IP was supposed to go public domain when the founder died. They could not let that happen.