Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DC

Diafloc Co. — 7 Patents

Rank (All Time): #76,281 of 105,732Top 75%
16 inventors
7 Patents All Time

Patents per Year

Patents granted per year, 1981 to 1994Bar chart with a peak of 2 patents in 1985.peak 21981: 1 patents19811982: 1 patents19821984: 1 patents19841985: 2 patents19851988: 1 patents19881994: 1 patents1994

Top Inventors at Diafloc Co. All Time

Showing 1–16 of 16 inventors

RankNamePatents
1 Akihisa Furuno 4
1 Jun Hosoda 4
1 Ryoji Handa 4
#4 Norimasa Yoshida 3
#5 Nobuo Kurashige 2
#5 Yasuo Ogawa 2
#7 Osamu Okushima 1
#7 Hideaki Habara 1
#7 Hitoshi Tamura 1
#7 Kenzo Ariyama 1
#7 Kenichi Inukai 1
#7 Ken-ichi Inukai 1
#7 Masaharu Nagahama 1
#7 Shoichi Kanda 1
#7 Teruzo Otsuka 1
#7 Teruhiko Sugimori 1