Human beings are never satisfied with what they have. If they've got a factory that makes 10 cars an hour, they'll keep working on the technology until it makes 20 cars an hour. The inventiveness of human beings means that thousands of advancements, some big, some small, are being made every day. To keep track of who invented what and who gets the profits from it, patents were created. Here's some information about applying for one.
Before you apply for a patent, check with the patent office to make sure someone hasn't already patented your device. This happens a lot, as many inventors have the same ideas, but only one can be first. Remember, you can only patent a device or a process, not an idea, so you can't file a patent to keep anyone else from figuring out how to improve the efficiency of a product or service before you do. You can, however, patent something that's an improvement on a device or process that's already patented.
Once your device is complete, it's up to its owner to file the patent if he or she wants to keep the exclusive right to use it. If you invented the device and funded the project with your own money, you would apply for the patent. However, if a photographer has been backing you as an investor and their money paid for your project, it's their responsibility to apply for the patent. They would also own the rights to the patent unless you made a formal agreement on profit sharing before the work was completed.
Applications for patents cost $200-$400 to file with the Canadian Intellectual Property Office. Putting together a patent application is a long and rigorous process that involves three parts. The first is called the abstract, which summarizes in words what your application is about. The second, the specification, describes the usefulness of the device or process. The third part is the drawings (technical and otherwise) of your product.
The intellectual property office maintains a guide to help patent applicants through this process. You can find it on online. If, however, your experience lies in preparing homes for sale, not filing patents and you want to make sure your application is not rejected on a technicality, you can hire a patent agent to help you. Read "How to get a patent in 5 steps" to learn more.