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

Ralph Krupke — 6 Patents

IBM: 5 patents #18,770 of 70,183Top 30%
KTKarlsruher Institut Für Technologie: 3 patents #20 of 428Top 5%
KTKarlsruhe Institute Of Technology: 2 patents #5 of 59Top 9%
FGForschungszentrum Karlsruhe Gmbh: 1 patents #104 of 428Top 25%
CLCambridge Enterprise Limited: 1 patents #278 of 688Top 45%
Blankenloch, DE: #36 of 296 inventorsTop 15%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Ralph Krupke has been granted 6 US patents while listed as an inventor at IBM. The first was granted in 2007 and the most recent in August 2016. Ralph Krupke ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Ralph Krupke in Blankenloch, DE.

Patents per Year

Patents granted per year, 2007 to 2016Bar chart with a peak of 2 patents in 2014.peak 22007: 1 patents20072013: 1 patents20132014: 2 patents20142015: 1 patents20152016: 1 patents2016

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9412815 Solution-assisted carbon nanotube placement with graphene electrodes Phaedon Avouris, Christos D. Dimitrakopoulos, Damon B. Farmer, Mathias B. Steiner, Michael Engel +1 more 2016-08-09 $4,722,000
8987705 Carbon nanotube transistor employing embedded electrodes Phaedon Avouris, Yu-Ming Lin, Mathias B. Steiner, Michael Engel 2015-03-24 $3,177,000
8859439 Solution-assisted carbon nanotube placement with graphene electrodes Phaedon Avouris, Christos D. Dimitrakopoulos, Damon B. Farmer, Mathias B. Steiner, Michael Engel +1 more 2014-10-14 $3,785,000
8629010 Carbon nanotube transistor employing embedded electrodes Phaedon Avouris, Yu-Ming Lin, Mathias B. Steiner, Michael Engel 2014-01-14 $7,408,000
8610989 Optoelectronic device employing a microcavity including a two-dimensional carbon lattice structure Phaedon Avouris, Mathias B. Steiner, Michael Engel, Andrea Ferrari, Antonio Lombardo 2013-12-17 $6,242,000
7161107 Method, arrangement and use of an arrangement for separating metallic carbon nanotubes from semi-conducting carbon nanotubes Frank Hennrich 2007-01-09