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

Willinger Brothers — 11 Patents

Rank (All Time): #50,778 of 105,732Top 50%
6 inventors
11 Patents All Time

Patents per Year

Patents granted per year, 1989 to 1991Bar chart with a peak of 5 patents in 1990.peak 51989: 4 patents19891990: 5 patents19901991: 2 patents1991

Top Inventors at Willinger Brothers All Time

Showing 1–6 of 6 inventors

RankNamePatents
1 Allan H. Willinger 9
2 Klaus Woltmann 3
3 Abraham Friedman 1
3 Chen-Chiao Wang 1
3 Jonas Ivasauskas 1
3 Robert Ellis 1