According to the categories in Bajie's Encyclopedia of Intellectual Property Trademarks, transport trademarks belong to the 39th category -390 1- pre-transport packaging services, 3902- water transport and related services, 3903- land transport, 3904- air transport and 3905- other transport and related services. Most of the trademarks in this category are about transportation and storage.
One of the reasons why enterprises transfer trademarks is probably time. It takes more than one year for a trademark to register, and problems can occur in time. Trademark transfer has an advantage in time and may surpass registration. For any enterprise, it may want to use its own trademark to operate as soon as possible.
This is also the origin of the problem of trademark transfer time. If there is no episode in trademark transfer, it can be used in 10 working days. Enterprises need to prepare relevant notarization materials in advance and submit them to the Trademark Office. Since then, most successful transfers have taken half a year. Enterprises can of course use trademarks in other ways while waiting.
Although it takes several months to review the trademark transfer application, at this time, the enterprise/assignee can authorize the trademark with the transferor/registrant first, then the trademark can be used first, and the specific publicity can also start from this time. But because the trademark is acquired through transfer, you don't have to worry too much about publicity, so you can focus on your business.
Now the market competition is fierce, and putting into production one day earlier can basically help enterprises occupy a certain advantage. The whole process of buying a trademark is complicated, and every step can be completed smoothly, which will naturally be much faster. Enterprises registering their own trademarks may not get a positive reply from trademark approval after waiting for a long time, so trademark transfer also has certain advantages in this respect.