The pills I received from your company are not like their brand name equivalent. There is another name on these medicines. Why is this so?

As mentioned, manufacturers cannot be awarded patent for developing chemical ingredients. That is why generics have exactly the same ingredients as the brand medicines. But the shape and the name of a pill can be subject to patent and treated as intellectual property. If a generics company uses the same shape and the same brand name, they might be sued for copyright infringement. Generic meds look much different as they have different shape and different color compared to the leading brand drug.