Document 5kVLJKo0nj13RKQQ0x7ayQDj8

POWER OF ATTORNEY CH-1361 As a below-nanied inventor, I declare that I believe that I am the original, first and sole inventor (if only one name is listed below) or an original, first and joint inventor (if plural names are listed below) of the subject matter which is claimed in the specification identified below and for which a patent is sought on the invention as tilted therein. 1 hereby state that I have reviewed and understand the contents of said specification including the claims, as amended by any amendment referred to herein. I acknowledge the duty to disclose information which is material to the examination of this application in accordance with 37 C.F.R. 1.56fa>. Full Name I of Inventor1" ! Residence & 1 Citizenship , POSt Office Address Full Name of Inventor'*' Residence & Citizenship Post Office Address Full Name of Inventor131 Residence & Citizenship Post Office Address Last Name CHAO cy Newark Post Office Address 132 Osage Iasi Name c.ty Posl OHice Address Lasi Name cay Post OHice Address Lane First Name .TZE Stale or Foreign Country Delaware City Newark First Name Stale or Foreign Country City First Name State or Foreign Country ! j C*ty Title of the invention: METHOD FOR PURIFYING TIO2 ORE Middle Name Country ol Citizenship U.S.A. State or Country Delaware Middle Name Country ol Citizenship Slate or Country Middle Name Country ot Citizenship State or Country Zip Coao 19711 Zip Code Zip Code yp Patent specification attached. n Patent spfir.ifirafir>n was filed on was amended on (rl applicable) as U.S. aoolication Serial No. 5* No earlier-filed foreign applications ol which priority benefit is claimed. and Required information as to earlier-filed foreign applications of which priority benefit is claimed appears on page 2 attached. 5? No earlier-filed U.S. applications of which priority benefit is claimed. Required information as to earlier-filed U.S. applications of which priority benefit is claimed appears on page 2 attached. POWER OF ATTORNEY: The power to prosecute this application and transact all business in the Patent and Trademark Office connected therewith is hereby granted to the following K attorney(s) agent(s): NamC David J. Gould Hoge T. Sutherland Registration Number 25,338 20,010 Send correspondence and direct telephone calls to: David J. Gould Legal Department E. I. du Pont de Nemours & Co. Wilmington, DE 19898 Tel. No. (302)77 4 - 2 4 8 7 1 further declare that all statements made herein of my own knowledge are true and that all statements made on information and belief are believed to be true: and further that these statements were made with the knowledge that willful false statements and the like so made are punishable by fine or imprisonment, or both, under Section 1001 ofTitle 18 of the United States Code, and that such willful fatse statements may jeopardize the validity of the application or any patent issuing thereon. Signgttjre of Inventor*' v.. .. ___ Signature ol Inventor1 * Signature of Inventor'5 N 30893