This score is divided into two grades:
If it is a company that you can personally control, it is beneficial for you to invest in technology.
If you are not familiar with this company at all, even if you become a long-term shareholder, the company will often try to crowd you out. After all, you are not the company controller. Furniture is patented, but the technology is not complicated. As soon as the products become popular, manufacturers will adopt new models, so there are many things that plague holding companies, or they will often go out.
Technology-based shareholding is generally because the technology is extremely complicated and the follow-up development continues, which makes it impossible for the company to leave you. This is suitable for technical shareholding.
One-time buyout:
Is to find a manufacturer and buy it out at one time. Get what you want directly. For general patents, this is the best. As for the subsequent risks, you are completely out of it.
I can understand how you feel about design patents, just like your own children, and you really can't bear to sell them. From your point of view, the best way is to buy out. As for the buyout price, you are not in charge, but you should investigate the profit margin of new styles in the furniture market. As long as you are familiar with the process, you still can't get satisfactory results. This thing is not absolute, it depends on what resources you have.