Search Results for: Silk waste
product thereof (e.g., using pine stumps, chips, bark, etc., as starting material) (class / ) plant sap or fossil starting material used in process, or product thereof (e.g., using copal, coal, amber, dammar, etc., as starting material) (class / ) recovery of tall oil or derivatives from papermaking waste
(class / ) scleroproteins, e.g., fibroin, elastin, silk, etc. (class / ) nucleoproteins, e.g., chromatin, chromosomal proteins, histones, protamines, salmine, etc. (class / ) lipoproteins, e.g., egg yolk proteins, cylomicrons, etc....
https://patents.justia.com/patents-by-us-classification/530