Once your work is fixed (written down, recorded, etc.), it is automatically protected by copyright.
Do I need to submit a different copyright application for each work that I do.
You need permission from the copyright holder or an exemption in the law.
If you wish to reuse a copyright-protected image, you need permission from the copyright holder or an exemption in the law.
The author of a creative design is the owner of the copyright automatically.
Typically you would first need permission of the copyright holder.
This is a question highly dependant upon the country in which you wish to have a copyright protection. You need to check the schedules attached to the law dealing with copyright.
If the patterns are under copyright then you need the permission of the copyright holder to sell them.
Copyright exists as soon as the book is finished and it is not necessary to formally register with the US copyright office before publication.
They've got it whether they need it or not. Copyright protection is automatic as soon as a work of sufficient originality is fixed in a tangible medium.
It does not cost anything to receive copyright protection in most cases. For a watch, you would need to seek out a patent to protect your product, not copyright.
It depends on what you need. For general copyright information, contact the copyright office in your country. For permission to use specific works, contact the rightsholder or their administrator.
Not since 1978.