There’s also hidden value in owning a drug that nobody else can make for seventeen years, and if the owner can improve the drug slightly, then he gets to keep the patent for another seventeen years. On the books, these wonderful drug patents may be worth zippo. When Monsanto bought Searle, it picked up NutraSweet. NutraSweet comes off patent in four years and will continue to be valuable even then, but Monsanto is writing the whole thing off against earnings. In four years NutraSweet will show up as a zero on Monsanto’s balance sheet. Just as in the case of Coca-Cola Enterprises, when Monsanto
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