How to File a Patent in X Steps. 1. Search the United States Patent and Trademark Office. Before you invest another dollar or minute of your time, use this search engine to make sure your idea hasn't already been patented. Make sure your idea is something you can patent using this resource from the USPTO.
Phaeophyta or brown algae are a group of autotrophic, multicellular organisms, belonging to the class Phaeophyceae in the division Chromophyta. They contain the xanthophyll pigment - fucoxanthin, in addition to chlorophyll a and c. Hence, the members of phaeophyta exhibit a characteristic greenish-brown color.
Brown algae is a common occurrence in a newly set up aquarium. 1  It is generally caused by too little light, an excess of silicates, an abundance of nutrients, and too little oxygen. Silicates can build up through tap water that is high in silicic acid, and silicates that leech from some types of substrates.