I'm starting my own lawncare business and wondered if anyone knew anything behind the pantented use of feedgrains for lawncare. I've heard that one of the university's (Iowa I think) patented the use of feedgrains as fertilizer, herbicide, fungicide, etc... Does that mean if I have a business that advertises "Chemical Free Lawncare" and uses soybean meal as a fertilizer that I'll have to pay royalties to the owner of the patent? Or would that only apply if I advertised "Organic Lawncare"? I'm not physically bagging the feedgrain and selling it off the shelf as fertilizer so I'm not sure how the patent laws would apply to my situation. Any advice from those with knowledge or experience with this would be appreciated. Other than that I'll have to retain the services of a lawyer (which I may need to anyway). My business plan is kind of based around the use of organic amendments. In fact it's going to be my edge above the competition. My plan is to market and educate the general public on organic lawncare in hopes they'll retain my services. It should be good for an account or two.