Tech Transfer api's JSON data shows unnecessary tags and special letters which are not removal while developing an App.

This is the example query -> https://api.nasa.gov/techtransfer/patent/?engine&api_key=DEMO_KEY

And it shows like these letters ->

Due to which I am getting responses like this ->

If these tags can be removed it will be really helpful. Or if there any way anyone can suggest me to remove those tags from my it would be great.
Here is my data class ->

            @Parcelize
         data class Patent(
         val count: Int,
         val page: Int,
         val perpage: Int,
         val results: List<List<String>>,
         val total: Int
             ) : Parcelable

You can check app on playstorehttps://play.google.com/store/apps/details?id=com.kushalsharma.nasawalli
I have to solve this ASAP. Is there any way to solve this?

Start with the Tech Transfer patent endpoint in the example query and compare its JSON response with the screenshots. Trace where the tags and special characters originate; done means the endpoint returns usable values or the issue documents the required client-side handling.