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

Stuart J. Ledingham — 34 Patents

VEValu Engineering: 28 patents #1 of 5Top 20%
SISolus Industrial Innovations: 5 patents #1 of 11Top 10%
Coto De Caza, CA: #11 of 173 inventorsTop 7%
California: #14,619 of 386,348 inventorsTop 4%
Overall (All Time): #100,737 of 4,157,543Top 3%
34 Patents All Time
Stuart J. Ledingham has been granted 34 US patents while listed as an inventor at Valu Engineering. The first was granted in 1993 and the most recent in December 2006. Stuart J. Ledingham ranks #100,737 of 4,157,543 US inventors in our database (top 2.4%). Patent records list Stuart J. Ledingham in Coto De Caza, CA, US.

Patents per Year

Patents granted per year, 1993 to 2006Bar chart with a peak of 7 patents in 2003.peak 71993: 2 patents19931994: 1 patents1997: 2 patents19971998: 2 patents1999: 2 patents19992000: 3 patents2001: 3 patents20012002: 2 patents2003: 7 patents20032004: 5 patents2005: 3 patents20052006: 2 patents2006

Issued Patents All Time

Showing 1–25 of 34 patents

Patent #TitleCo-InventorsDate
7147098 Bendable/twistable rolling conveyor guide 2006-12-12
6991086 Bendable rolling conveyor guide 2006-01-31
6964333 Conveyor chain guide system 2005-11-15
6872027 Versatile guide rail clamp 2005-03-29
D503333 Clamp 2005-03-29
6827205 Guide rail spacer 2004-12-07
6786672 Low profile rod clamp 2004-09-07
6752260 Guide rail support bracket for conveyor system David N. Padgett 2004-06-22
6752534 Flange bearing having reinforced molded housing 2004-06-22
6685385 Versatile guide rail clamp 2004-02-03
6669009 Guide rail support bracket assembly for conveyor system David N. Padgett 2003-12-30
6591978 Conveyor bracket 2003-07-15
6579032 Low profile rod clamp 2003-06-17
6543608 Guide rail support bracket for conveyor system David N. Padgett 2003-04-08
6533108 Serpentine clip 2003-03-18
6533110 Guide rail spacer 2003-03-18
6516933 Bendable rolling conveyor guide 2003-02-11
6493939 Flange bearing having reinforced molded housing 2002-12-17
6427829 Conveyor bracket 2002-08-06
6287045 Splice sleeve for guide rails Jeffrey J. Schwarz 2001-09-11
6250841 Splice sleeve for guide rails 2001-06-26
6189685 Guide rail support bracket for conveyor system David N. Padgett 2001-02-20
6135271 Guide rail spacer 2000-10-24
6105757 Rail and bed system 2000-08-22
6053654 Splice sleeve for guide rails 2000-04-25