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USPTO Patent Rankings Data through Dec 31, 2025
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Eugene N. Step — 24 Patents

CACabot: 19 patents #20 of 601Top 4%
SLShipley Company, L.L.C.: 4 patents #71 of 401Top 20%
Billerica, MA: #15 of 621 inventorsTop 3%
Massachusetts: #4,431 of 88,656 inventorsTop 5%
Overall (All Time): #168,038 of 4,157,543Top 5%
24 Patents All Time
Eugene N. Step has been granted 24 US patents while listed as an inventor at Cabot. The first was granted in 2003 and the most recent in November 2025. Eugene N. Step ranks #168,038 of 4,157,543 US inventors in our database (top 4.0%). Patent records list Eugene N. Step in Billerica, MA, US.

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12473434 Composition for liquid-based additive manufacturing Dmitry Fomitchev, Paul S. Palumbo, Jodi A. Bates, Xi Qing Zhang, Russell Lee Lewis +4 more 2025-11-18
12045007 Toner additives comprising composite particles Dmitry Fomitchev 2024-07-23 $31,460,000
12024616 Method of producing thermoplastic elastomers and polymer composite obtained thereby Alain Thielen, Marc B. Delvaux 2024-07-02 $26,114,000
10955763 Toner additives comprising composite particles Dmitry Fomitchev 2021-03-23 $12,414,000
10450493 Modified carbon black for oilfield fluids Michael J. Natan 2019-10-22 $16,958,000
9982158 Coatings having filler-polymer compositions with combined low dielectric constant, high resistivity, and optical density properties and controlled electrical resistivity, devices made therewith, and methods for making same Andriy Korchev, Jeremy K. Huffman, Agathagelos Kyrlidis, Pavel A. Kossyrev, Geoffrey D. Moeser +1 more 2018-05-29 $6,038,000
9790393 Coatings having filler-polymer compositions with combined low dielectric constant, high resistivity, and optical density properties and controlled electrical resistivity, devices made therewith, and methods for making same Andriy Korchev, Jeremy K. Huffman, Agathagelos Kyrlidis, Pavel A. Kossyrev, Geoffrey D. Moeser +1 more 2017-10-17 $7,551,000
9568847 Toner additives comprising composite particles Dmitry Fomitchev 2017-02-14 $5,850,000
9546286 High resistivity coating compositions having unique percolation behavior, and electrostatic image developing systems and components thereof incorporating same Andriy Korchev, Agathagelos Kyrlidis, Clovis D. Haynes, Gregory R. Schulz, John R. Szwec 2017-01-17 $8,675,000
9267048 Methods to control electrical resistivity in filler-polymer compositions and products related thereto Andriy Korchev, Jeremy K. Huffman, Agathagelos Kyrlidis, Pavel A. Kossyrev 2016-02-23 $16,005,000
9150739 Oxidized carbon blacks treated with polyetheramines and coating compositions comprising same Angelica M. Sanchez Garcia, Jeffrey S. Sawrey, Lang H. Nguyen, Joshua B. Preneta 2015-10-06 $7,174,000
8728223 Low viscosity, high particulate loading dispersions Anne Shim, Agathagelos Kyrlidis, Lang Nyugen 2014-05-20 $6,935,000
8697778 High resistivity compositions Agathagelos Kyrlidis 2014-04-15 $8,296,000
8585816 Low viscosity, high particulate loading dispersions Anne Shim, Agathagelos Kyrlidis, Lang H. Nguyen, Ian D. Morrison 2013-11-19 $8,161,000
8394563 Carbon blacks, toners, and composites and methods of making same Anne Shim, Agathagelos Kyrlidis 2013-03-12 $11,897,000
7972428 Process for preparing modified pigments Robert J. Nick 2011-07-05 $15,605,000
7807321 High resistivity compositions Agathagelos Kyrlidis 2010-10-05 $6,975,000
7732115 Toners comprising modified pigments and processes for preparing the same Agathagelos Kyrlidis 2010-06-08 $3,814,000
7655372 Toners comprising modified pigments and processes for preparing the same Agathagelos Kyrlidis 2010-02-02 $6,788,000
7175946 Modified pigment products and black matrixes comprising same James A. Belmont 2007-02-13 $15,266,000
6827839 Plating bath analysis Wade Sonnenberg, Mark J. Kapeckas, David L. Jacques, Raymond Cruz, Leon Barstad +2 more 2004-12-07
6610192 Copper electroplating Robert A. Binstead, Denis Morrissey 2003-08-26
6531046 Seed layer repair method Denis Morrissey, David Merricks, Leon Barstad, Jeffrey M. Calvert, Robert Schetty +4 more 2003-03-11
6508924 Control of breakdown products in electroplating baths Luis A. Gomez, Rozalia Beica, Denis Morrissey 2003-01-21