paten4dPATEN4D selamat datang di website dinas pemerintahan kabupaten penajam paser utara yang setiap hari memberikan maklumat pelayanan terbaik hari ini.Patented inventions have, in fact, pervaded every aspect of human life, from electric lhting (patents held by Edison and Swan) and plastic (patents held by Baekeland), to ballpoint pens