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

Howard Siu — 4 Patents

CACalcomp: 1 patents #29 of 71Top 45%
MAMagtek: 1 patents #18 of 36Top 50%
SGSanders Gmbh: 1 patents #63 of 158Top 40%
San Gabriel, CA: #80 of 297 inventorsTop 30%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Howard Siu has been granted 4 US patents while listed as an inventor at Calcomp. The first was granted in 1986 and the most recent in September 1998. Howard Siu ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Howard Siu in San Gabriel, CA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5814796 Terminal for issuing and processing data-bearing documents Terrence R. Benson, Richard J. Jablonski, Lawrence V. Maldarelli 1998-09-29
5719608 Constant flow ink delivery system Charles Sabonis 1998-02-17 $4,615,000
5448066 Lubrication system for thermally-imaged films Dana S. Smith 1995-09-05
4594597 Thermal printer Dean-Yuan Liu, Jon Guy, Michael A. Shaver 1986-06-10 $1,089,000