1. 6689. S-M-C (Sulfur Mineral Concentrate) and Sulf-Hydro-Sol. Defendants: Colloidal Sulphur Co., Inc. Issue Dates: August 1962
2. 6810. Sulf-Hydro-Sol and S-M-C (Sulfur Mineral Concentrate). Defendants: Colloidal Sulphur Co., Inc. Issue Dates: November 1962