Polymer composition for delivering substances in living organisms
Patent 6030941 Issued on February 29, 2000. Estimated Expiration Date: April 30, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
514/2, Peptide containing (e.g., protein, peptones, fibrinogen, etc.) DOAI514/12, 25 or more peptide repeating units in known peptide chain structure514/21, Produced by or extracted from animal tissue514/772, DESIGNATED ORGANIC NONACTIVE INGREDIENT CONTAINING OTHER THAN HYDROCARBON514/773Peptide containing
Polymeric compositions effective for delivering compounds in living organisms are described. The compositions include polypeptides which exhibit solubility in both hydrophilic and lipophilic environments by undergoing a reversible pH-dependent transition from a low-pH, lipophilic form to a high-pH, hydrophilic form.
Other References
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April 30, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
