Miss Vickie has good info about various pressure cookers on her website. It says it is made by Salton.
Miss Vickie also says some Cook's Essentials models are made by Keystone Manufacturing.
What we know for certain is that there's no company called Cook's Essentials. It's a product name used by QVC for a variety of different products made by various manufacturers.
The Cook's Essentials 4.22 Qt Electric Pressure Cooker Model # 99740 is the same as Nesco Professional Digital 3-in-1 cooker Model # PC-6-25-30TPR imported from China by the Metal Ware Corp. in Two Rivers, Wisconsin. Their website is www.nesco.com. I think Bob Warden is from Wisconsin Rapids, Wisconsin. The product works great. Too bad it's not a Made in America product!