Patrick J. Kelley has been granted 8 US patents while listed as an inventor at AT&T . The first was granted in 1998 and the most recent in November 2020. Patrick J. Kelley ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Patrick J. Kelley in Willoughby, OH, US.
Patents per Year Patents granted per year, 1998 to 2020 Bar chart with a peak of 6 patents in 2001. peak 6 1998: 1 patents 1998 2001: 6 patents 2001 2020: 1 patents 2020
Issued Patents All Time
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Showing 1–8 of 8 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
10835027 Brush head for use with floor cleaning machine Kenneth L. Shary , Yongxing YAN , Zhiman Zhuo 2020-11-17
6313500 Split gate memory cell Chung Wai Leung , Ranbir Singh 2001-11-06
$4,081,000
6284598 Method of manufacturing a flash memory cell having inter-poly-dielectric isolation Ranbir Singh , Larry Bruce Fritzinger , Cynthia C. Lee , John Simon Molloy 2001-09-04
$7,459,000
6222764 Erasable memory device and an associated method for erasing a memory cell therein Chung Wai Leung , Ranbir Singh 2001-04-24
6191980 Single-poly non-volatile memory cell having low-capacitance erase gate Ross A. Kohler , Chung Wai Leung , Richard J. McPartland , Ranbir Singh 2001-02-20
$18,448,000
6174786 Shallow trench isolation method providing rounded top trench corners Ranbir Singh , Larry Bruce Fritzinger , Cynthia C. Lee , John Simon Molloy 2001-01-16
$39,364,000
6168995 Method of fabricating a split gate memory cell Chung Wai Leung , Ranbir Singh 2001-01-02
$28,454,000
5806132 Locking coupler for floor maintenance pad — 1998-09-15