For protecting valuable inventions from infringement it is better to patent them as soon as possible. To protect ideas a patent is an ideal way. To maintain patent-pending status the provisional patent application can be filed. It can be sustained only for 12 months. For further upcoming applications sell goods or products, one can seek out manufacturers and additionally get the necessary prototypes developed, in that time.
Before the end of 12 months, an actual patent has to be filed, from the date of provisional patent was filed it is treated as having been applied for on that date. You have patent protection after your invention even if someone trying a similar patent. It is not complicated to