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

Unisys — 2,462 Patents

Rank (All Time): #335 of 105,732Top 1%
2,028 inventors
2,462 Patents All Time

Patents per Year

Patents granted per year, 1996 to 2025Bar chart with a peak of 134 patents in 1996.peak 1341996: 134 patents19961997: 109 patents1998: 122 patents1999: 94 patents19992000: 99 patents2001: 109 patents2002: 121 patents20022003: 99 patents2004: 118 patents2005: 83 patents20052006: 106 patents2007: 86 patents2008: 89 patents20082009: 52 patents2010: 40 patents2011: 23 patents20112012: 18 patents2013: 13 patents2014: 23 patents20142015: 24 patents2016: 40 patents2017: 41 patents20172018: 19 patents2019: 22 patents2020: 29 patents20202021: 14 patents2022: 10 patents2023: 5 patents20232024: 7 patents2025: 7 patents2025

Top Inventors at Unisys All Time

Showing 1–50 of 2,028 inventors

RankNamePatents
1 Mitchell A. Bauman 52
2 Bruce Ernest Whittaker 47
3 Larry L. Byers 47
#4 Robert A. Johnson 42
#5 John Vala 37
#6 Jerry Ihor Tustaniwskyj 36
#7 Johan P. Bakker 35
#8 Albert B. Cooper 30
#9 Michael N. Tranquilla 29
#10 Andrew Ward Beale 28
#11 Samuel C. Kingston 27
#12 James M. Plasek 25
#13 Jane Campbell Mazzagatti 24
#14 Kelsey L. Bruso 24
#15 Kelvin S. Vartti 24
#16 Gary Copenhaver 23
#17 Wayne A. Michaelson 22
#18 James Wittman Babcock 21
#19 Dennis R. Konrad 20
#20 David Strong 20
#21 John W. Zscheile, Jr. 19
#22 John S. Kuslak 19
#23 David J. Concannon 19
#24 Keith D. Mease 19
#25 Joseph Peter Stefaniak 18
#26 Terry W. Louth 18
#27 Duane J. McCrory 18
#28 Clive E. Catchpole 18
#29 J. Michael Spall 17
#30 Steven T. Barham 17
#31 Grant M. Smith 17
#32 Saul Barajas 17
#33 James R. Malnati 17
#34 Donald Edward Baisley 17
#35 Joseph P. Kerzman 16
#36 Andrew T. Jennings 16
#37 Ralph E. Sipple 16
#38 Thomas P. Cooper 16
#39 Daniel A. Jochym 15
#40 David R. Johnson 15
#41 Donald C. Englin 15
#42 Eugene J. Gretter 15
#43 Laurence P. Flora 15
#44 Sarah K. Inforzato 15
#45 Robert Klein 15
#46 Niels Gebauer 14
#47 Steven L. Rajcan 14
#48 David C. Johnson 14
#49 Edward T. Cavanagh 14
#50 Eugene A. Rodi 14

Most Valuable Patents

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