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

Photogen — 12 Patents

Rank (All Time): #47,138 of 105,732Top 45%
5 inventors
12 Patents All Time

Patents per Year

Patents granted per year, 1998 to 2003Bar chart with a peak of 4 patents in 2002.peak 41998: 2 patents19981999: 1 patents19992000: 1 patents20002001: 1 patents20012002: 4 patents20022003: 3 patents2003

Top Inventors at Photogen All Time

Showing 1–5 of 5 inventors

RankNamePatents
1 H. Craig Dees 10
2 Eric A. Wachter 7
3 Walter G. Fisher 6
#4 John Smolik 5
#5 Timothy C. Scott 2