maybe you are right... we will talk about it in our team :) For now you can select to see only the deeds that you can collect by clicking the highlight sun icon on the upper right corner of the deeds panel, so you collect them faster..
There are 5 categories of patent cards: Plain, special, unique, multi, master. Master is the best category and plain is the worse. Each category give you a given percentage boost when you obtain the first card for a particular business and every next card adds a fraction of this initial boost. Generally it is better to have cards of every category, because the initial boost is always higher than the boost of the second same card etc.
maybe you are right... we will talk about it in our team :) For now you can select to see only the deeds that you can collect by clicking the highlight sun icon on the upper right corner of the deeds panel, so you collect them faster..