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

Lupu Alexandru — 20 Patents

Xerox: 20 patents #696 of 8,622Top 9%
Toronto, CA: #295 of 9,482 inventorsTop 4%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Lupu Alexandru has been granted 20 US patents while listed as an inventor at Xerox. The first was granted in 1985 and the most recent in December 1993. Lupu Alexandru ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Lupu Alexandru in Toronto, ON, CA.

Patents per Year

Patents granted per year, 1985 to 1993Bar chart with a peak of 5 patents in 1991.peak 51985: 2 patents19851988: 4 patents19881990: 4 patents19901991: 5 patents19911992: 4 patents19921993: 1 patents1993

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5274057 Bead suspension polymerization process Michael K. Georges, Robert D. Bayley 1993-12-28 $4,218,000
5155193 Suspension polymerization processes Michael K. Georges, Peter G. Odell 1992-10-13 $4,948,000
5122187 Hot melt ink compositions William M. Schwarz, Robert H. Marchessault, Bernard Henrissat 1992-06-16 $6,684,000
5114820 Polyalkyl styrene butadiene toner compositions Michael K. Georges 1992-05-19 $3,892,000
5082919 Crosslinked thermotropic liquid crystalling polyarylate Guerino G. Sacripante, T. Brian McAneney, Stephan V. Drappel, Sheau Van Kao 1992-01-21 $3,041,000
5039773 Toner and developer compositions with thermotropic liquid crystalline polymers Guerino G. Sacripante 1991-08-13 $5,532,000
5039584 Charge transport layers containing purified polycarbonates Peter G. Odell, Giuseppa Baranyi 1991-08-13 $5,532,000
5034296 Photoconductive imaging members with fluorene polyester hole transporting layers Beng S. Ong, Giuseppa Baranyi 1991-07-23 $3,805,000
5006170 Hot melt ink compositions William M. Schwarz, Robert H. Marchessault, Bernard Henrissat 1991-04-09 $5,741,000
4983482 Photoconductive imaging members with polyurethane hole transporting layers Beng S. Ong, Dasarao K. Murti 1991-01-08 $2,852,000
4973539 Toner and developer compositions with crosslinked liquid crystalline resins Guerino G. Sacripante, T. Brian McAneney, Stephan V. Drappel, Sheau V. Kao 1990-11-27 $2,359,000
4921940 Process for the purification of Ti containing polycarbonate with solvent, complexing agent and water Peter G. Odell, Giuseppa Baranyi 1990-05-01 $1,996,000
4894309 Processes for the preparation of crosslinked copolymers Michael K. Georges, William JP Dale, Paul D. Szabo, Robert A. Nelson 1990-01-16 $4,267,000
4891293 Toner and developer compositions with thermotropic liquid crystalline polymers Guerino G. Sacripante 1990-01-02 $5,663,000
4778742 Colored toner compositions Beng S. Ong, Walter Mychajlowskij 1988-10-18 $5,324,000
4774160 Toner compositions with amorphous ternary copolycarbonates Hadi K. Mahabadi 1988-09-27 $4,343,000
4770968 Polysiloxane-styrene-butadiene terpolymers and use in toners Michael K. Georges 1988-09-13 $1,891,000
4766255 Processes for bisphenols Beng S. Ong 1988-08-23 $2,526,000
4558108 Aqueous suspension polymerization process Peter G. Odell 1985-12-10 $1,805,000
4543313 Toner compositions containing thermotropic liquid crystalline polymers Hadi K. Mahabadi 1985-09-24 $4,901,000