Nikola Tesla and his patents

It is probably crazy to talk about Nikola Tesla’s patents because the list exceeds number 300 when talking about patents put into patent protection. He wasn’t given any records for some of the patents, and some of them were later discovered in patent archives. More than a hundred patents were registered in the USA, and lots of them in other countries such as the UK, Germany, Spain, France, Belgium… and the list goes on. Probably the most intriguing mystery lies in his proposition of the World Wireless System and Teleforce, a defensive weapon. The wireless system was developed many years later, and Teleforce, the idea was used, but is it possible that the product is not in use?