Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Stephen A. Koch — 42 Patents

CECertainteed: 42 patents #15 of 431Top 4%
Collegeville, PA: #18 of 630 inventorsTop 3%
Pennsylvania: #1,017 of 74,527 inventorsTop 2%
Overall (All Time): #72,062 of 4,157,543Top 2%
42 Patents All Time
Stephen A. Koch has been granted 42 US patents while listed as an inventor at Certainteed. The first was granted in 2004 and the most recent in June 2025. Stephen A. Koch ranks #72,062 of 4,157,543 US inventors in our database (top 1.7%). Patent records list Stephen A. Koch in Collegeville, PA, US.

Issued Patents All Time

Showing 1–25 of 42 patents

Patent #TitleCo-InventorsDate
12338627 Roofing shingles and palleted pluralities thereof Rakshith Srinivasa, Paul A. Benensky 2025-06-24
11326350 Short penetration flashing, flashing systems and methods for installing them Alex C. Nash, Robert L. Jenkins, Christopher C. Fisher 2022-05-10
11008759 Roofing product including a heater Robert L. Jenkins, Gregory F. Jacobs 2021-05-18
10982445 Panel for use as exterior covering for roofing or siding and building structure having same Robert L. Jenkins, Husnu M. Kalkanoglu 2021-04-20
10801209 Short penetration flashing, flashing systems and methods for installing them Alex C. Nash, Robert L. Jenkins, Christopher C. Fisher 2020-10-13
10214908 Roofing product including a heater Robert L. Jenkins, Gregory F. Jacobs 2019-02-26
9657479 Shingle with reinforcement layer Husnu M. Kalkanoglu 2017-05-23
9353526 Shingle with reinforcement layer Husnu M. Kalkanoglu 2016-05-31
9331224 Photovoltaic roofing elements, photovoltaic roofing systems, methods and kits Husnu M. Kalkanoglu, Gregory F. Jacobs, Wayne E. Shaw, Robert L. Jenkins, Robert D. Livsey 2016-05-03
9169645 Shingle with reinforcement layer Husnu M. Kalkanoglu 2015-10-27
9057194 System, method and apparatus for wedge-shaped, multi-layer asphalt roofing Robert L. Jenkins 2015-06-16
8959875 Shingle with reinforcement layer Husnu M. Kalkanoglu 2015-02-24
8959876 Shingle with reinforcement layer Husnu M. Kalkanoglu 2015-02-24
8950161 Shingle with reinforcement layer Husnu M. Kalkanoglu 2015-02-10
8925272 Roofing shingles with reduced usage of conventional shingle material having side lap extension Anna M. Amatruda, Peter Chihlas, Robert L. Jenkins, Jennifer A. Millberg, Richard A. Snyder +1 more 2015-01-06
8898963 Roofing shingles with reduced usage of conventional shingle material and having a combination vertical and lateral lap extension Anna M. Amatruda, Peter Chihlas, Gregory F. Jacobs, Robert L. Jenkins, Jennifer A. Millberg +2 more 2014-12-02
8898987 Roofing shingles with reduced usage of conventional shingle material and having top lap extension Anna M. Amatruda, Peter Chihlas, Gregory F. Jacobs, Robert L. Jenkins, Jennifer A. Millberg +2 more 2014-12-02
8820020 Hip, ridge or rake shingles and stacks of hip, ridge or rake shingles Husnu M. Kalkanoglu, Robert L. Jenkins, Gregory F. Jacobs 2014-09-02
8615968 Shingle with reinforcement layer Husnu M. Kalkanoglu 2013-12-31
8468757 Photovoltaic roofing systems and methods for installing them Richard H. Krause, Wayne E. Shaw, Gregory F. Jacobs, Paul J. Batt 2013-06-25
8413809 Packaging for specialty shingle Robert L. Jenkins, Husnu M. Kalkanoglu, Gregory F. Jacobs, Barbara A. McDonough, Paul J. Batt 2013-04-09
8409689 Shingle with reinforcement layer Husnu M. Kalkanoglu 2013-04-02
8383228 Shingle with reinforcement layer Husnu M. Kalkanoglu 2013-02-26
8371085 Shingles with combined fastener target zone and water barrier and process for producing same 2013-02-12
8323440 Process of producing hip, ridge or rake shingles, shingles produced thereby and stacks of the shingles Husnu M. Kalkanoglu, Robert L. Jenkins, Gregory F. Jacobs 2012-12-04