Company submits inventions to industry. Any of those mailings that don't get returned as undeliverable, normally just get tosssed in the trash by companies that receive the mailing. Find out what your full range of options are. Find out which is the best for you, then find a vehicle to showcase your invention to the right audience, for example, a trade show, or a web site, or a publication. But make sure that whatever vehicle or company you choose has a track record, and experience in showcasing inventions, as well as targeting the right audiences - this is a rare combination.
Company promotes inventions to industry.
Sometimes, scam companies also promote the inventions in several international trade shows, or in web sites to display and exhibit it. Their web sites usually have a small listing of the invention name and brief description of the invention which are also ineffective. Remember that they are charging thousands of dollars for these weak services. If you are considering displaying at a trade show, make your own arrangements directly with the trade show producer, and you will get a full size booth just for your own product's display. You still need to shop for the best trade show venues to attend depending on your specific needs, but you will be in direct control of your exhibit and money.