Brokerage in the field of business assets, namely, brokerage of the sale of patents, brokerage of the licensing of patents; Brokerage in the field of business assets, namely, brokerage of the sale of trademarks, brokerage of the licensing of trademarks; Brokerage in the field of business assets, namely, brokerage of the sale of trade secrets, brokerage of the licensing of trade secrets; Brokerage in the field of business assets, namely, brokerage of the sale of copyrights, brokerage of the li...