共 50 条
- [21] Challenges and issues in medical education in India ACADEMIC MEDICINE, 2006, 81 (12) : 1076 - 1080
- [22] Double patenting - One patent per invention JOM-JOURNAL OF THE MINERALS METALS & MATERIALS SOCIETY, 1996, 48 (06): : 67 - 67
- [23] PTO PRACTICE - SAME INVENTION DOUBLE PATENTING JOURNAL OF THE PATENT AND TRADEMARK OFFICE SOCIETY, 1987, 69 (04): : 219 - 223
- [24] PATENTING FOODS - IS IT AN INVENTION OR PRODUCT OF NATURE OR A RECIPE ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1995, 209 : 32 - CHAL
- [28] Overcoming obviousness when patenting nanotechnology inventions Nature Biotechnology, 2005, 23 : 677 - 678