For this matter, my opinion is:
1. It is not wrong for the patentee to safeguard his legitimate rights and interests. Everyone's patent is protected by law. If someone infringes his patent, he can safeguard his legitimate rights and interests through legal channels. It is not wrong for the patent owner of the scraper to safeguard his legitimate rights and interests. After all, these businesses have violated their legitimate rights and interests.
2. The practice of the patent owner is doubtful. According to the normal logical relationship, the patent owner of the scraper should be traced back to the manufacturer of the scraper, because the manufacturer of the scraper is the chief culprit in infringing other people's patents, but the patent owner of the scraper sued these businesses instead of looking for the manufacturer. After suing these businesses, the patent owner of the scraper agreed to settle the matter, but as a result, these businesses lost money, which made people wonder whether the patent owner was taking advantage of this matter to make a profit.
3. The business must be wronged. Many businesses don't know who owns the patents of the goods they sell. Some goods are wholesale from the market, and some are door-to-door sales by salesmen. After being accused, they also felt wronged. How can they infringe others' patents for no reason? There are many goods in a store, and of course they don't know who owns the patent right of each product.
In fact, this matter is also very easy to solve. Merchants can unite to find the manufacturer of this wire scraper and find the manufacturer that infringes others' patents, and their losses can also be recovered.