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

D&Pl Technology Holding Company — 87 Patents

Rank (All Time): #7,826 of 105,732Top 8%
20 inventors
87 Patents All Time

Patents per Year

Patents granted per year, 2002 to 2011Bar chart with a peak of 29 patents in 2006.peak 292002: 4 patents20022005: 14 patents20052006: 29 patents20062007: 13 patents20072008: 5 patents20082009: 18 patents20092010: 2 patents20102011: 2 patents2011

Top Inventors at D&Pl Technology Holding Company All Time

Showing 1–20 of 20 inventors

RankNamePatents
1 William V. Hugie 19
2 Douglas Shoemaker 16
2 Jeffrey M. Tyler 16
#4 Richard Leske 15
#5 Don L. Keim 14
#6 J. Grover Shannon 11
#7 Robert E. McGowen 8
#8 Dawn E Fraser 7
#9 Lawrence P. Burdett 5
#10 Richard H. Sheetz 4
#11 Christopher Tinius 3
#12 Albert Santos 2
#12 Curtis Williams 2
#12 Cynthia Green 2
#12 Gary S. Rea 2
#16 Don L. Kleim 1
#16 James F. Mitchell 1
#16 Jean Bridge 1
#16 Robert S. Bridge 1
#16 William P. Sappenfield, Sr. 1