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

Prp Holding — 9 Patents

Rank (All Time): #57,482 of 105,732Top 55%
14 inventors
9 Patents All Time

Patents per Year

Patents granted per year, 1993 to 2013Bar chart with a peak of 2 patents in 1995.peak 21993: 1 patents19931994: 1 patents19941995: 2 patents19951996: 1 patents19961997: 1 patents19971998: 1 patents19982013: 2 patents2013

Top Inventors at Prp Holding All Time

Showing 1–14 of 14 inventors

RankNamePatents
1 Francis C. Chao 6
2 Frank H. Liang 3
3 Bruno Daridon 2
3 Thibaut Veyrier 2
#5 Byung Keun KIM 1
#5 Didier Blin 1
#5 Lorraine S. Chao, heir 1
#5 Mark Chao 1
#5 Michael S. Chao, heir 1
#5 Miambi Edouard 1
#5 Paul C. Zamecnik 1
#5 Philippe Mora 1
#5 Roy Virginie 1
#5 Stephanie Giusti 1