Responsible.
You may be suspected of breach of contract. If you sign an exclusive contract with another place, then you will have breached the contract with the first company, and the other party has the right to sue you according to the breach of contract clause of the contract you signed. . If you sign a second contract knowingly that you already have an exclusive agent, then the second agent will also be responsible.
Exclusive licensing contract, also known as "exclusive licensing contract". According to this contract, the patentee allows the licensee to exclusively enjoy the right to use the patented invention and creation within a certain period and within a certain geographical scope, and the licensee pays the patentee royalties according to the agreed amount.