Crystal E. Koelper has been granted 11 US patents while listed as an inventor at Avent . The first was granted in 2016 and the most recent in June 2025. Crystal E. Koelper ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Crystal E. Koelper in North Barrington, IL, US.
Patents per Year Patents granted per year, 2016 to 2025 Bar chart with a peak of 4 patents in 2016. peak 4 2016: 4 patents 2016 2018: 2 patents 2018 2019: 1 patents 2019 2020: 1 patents 2020 2021: 1 patents 2021 2022: 1 patents 2022 2025: 1 patents 2025
Issued Patents All Time
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Showing 1–11 of 11 patents
Patent # Title Co-Inventors Date
12336870 Threaded connector port cleaning system, method, and apparatus Jeffrey S. Nordquist , Shawn G. Purnell , Robert McVey 2025-06-24
11224732 Threaded connector port cleaning system, method, and apparatus Jeffrey S. Nordquist , Shawn G. Purnell , Robert McVey 2022-01-18
10994089 Bridle delivery system, method, and apparatus for securing nasal tubes Donald R. Kirkpatrick , Jill Lazar , Michael Masino , Shawn G. Purnell , Michael C. Shaughnessy +1 more 2021-05-04
10682286 Gastric systems, apparatus, and methods for use with enteral feeding Jeffrey S. Nordquist , Robert McVey , Elizabeth J. Klodd , Jon W. Newland , Jill Lazar +3 more 2020-06-16
10188586 Gastric systems, apparatus, and methods for use with enteral feeding Jeffrey S. Nordquist , Robert McVey , Elizabeth J. Klodd , Jon W. Newland , Jill Lazar +3 more 2019-01-29
10071234 Dual material Y-connector Jeffrey S. Nordquist , Michael C. Shaughnessy , John Morici 2018-09-11
9956366 Bridle delivery system, method, and apparatus for securing nasal tubes Donald R. Kirkpatrick , Jill Lazar , Michael Masino , Shawn G. Purnell , Michael C. Shaughnessy +1 more 2018-05-01
D760873 Connectors for a Y-connector John Morici 2016-07-05
D750757 Dual material Y-connector John Morici 2016-03-01
D750758 Dual material Y-connector with tethered caps John Morici 2016-03-01
D750759 Overmold for a Y-connector John Morici 2016-03-01