Sorry, but your invention probably belongs to the company since you created it as part of your job and it is used by the company in the regular course of business. Ownership will transfer to whoever buys the business. However, you can always approach the current company and ask if it will transfer rights to the invention back to you, in which case you can copyright or patent it in your own name.
Answered on Aug 07th, 2015 at 9:40 AM