The knowledge need not be proprietary or unique. Assess the actual statutory knowledge standard and proposed work.
Explain the company-specific capability
Identify what the employee knows and how it is used. Ownership of intellectual property alone is neither the whole qualification nor a substitute for evidence of expertise.
The statutory definition concerns special knowledge of the petitioning organization's product, service, research, equipment, techniques, management or other interests and its application in international markets, or an advanced level of knowledge of the organization's processes and procedures. A grower who developed the company's own climate-control thresholds, its substrate recipe and the sequence it uses to move plugs from germination to finishing holds knowledge that exists only inside the company. Knowledge of a proprietary control system, its configuration conventions and its failure modes is knowledge of the petitioner's product; general controls or millwright competence is a trade skill. L-1B still requires a qualifying corporate relationship, one continuous foreign-employment year within the preceding three, and special or advanced knowledge of company products, processes, or procedures rather than ordinary skill. The related-company relationship and the foreign work history are separate gates: the employee normally needs twelve continuous qualifying months abroad in the prior three years, and L-1B is limited to five years overall.