Keith Wojciechowski — 59 Patents at Derrick

Keith Wojciechowski has been granted 59 US patents while listed as an inventor at Derrick. The first was granted in 1997 and the most recent in December 2025. Keith Wojciechowski ranks #40,067 of 4,157,543 US inventors in our database (top 0.96%). Patent records list Keith Wojciechowski in Lakeview, NY, US.

Issued Patents All Time

Showing 1–25 of 59 patents

Patent #	Title	Co-Inventors	Date
12491537	Injection molded screening apparatuses and methods	James R. Colgrove	2025-12-09
12208419	Compression apparatuses, systems and methods for screening materials	Christian Newman, Michael L. Peresan, Daniel P. Jenkins, William H. Gross	2025-01-28
12128445	Compression apparatuses, systems and methods for screening materials	Christian Newman, Michael L. Peresan, Daniel P. Jenkins, William H. Gross	2024-10-29
12053800	Compression apparatuses, systems and methods for screening materials	Christian Newman, Michael L. Peresan, Daniel P. Jenkins, William H. Gross	2024-08-06
12042822	Injection molded screening apparatuses and methods	James R. Colgrove	2024-07-23
11958077	Compression apparatuses, systems and methods for screening materials	Christian Newman, Michael L. Peresan, Daniel P. Jenkins, William H. Gross	2024-04-16
11938516	Compression apparatuses, systems and methods for screening materials	Christian Newman, Michael L. Peresan, Daniel P. Jenkins, William H. Gross	2024-03-26
11890647	Compression apparatuses, systems and methods for screening materials	Christian Newman, Michael L. Peresan, Daniel P. Jenkins, William H. Gross	2024-02-06
11638933	Injection molded screening apparatuses and methods	James R. Colgrove, Kurt Stodolka, Anthony J. Lipa, Alex DeMay	2023-05-02
11628474	Method and apparatuses for pre-screening	Christian Newman	2023-04-18
11505638	Thermoplastic compositions, methods, apparatus, and uses	James R. Colgrove, Alex DeMay	2022-11-22
11471913	Injection molded screening apparatuses and methods	—	2022-10-18
11471914	Injection molded screening apparatuses and methods	—	2022-10-18
11446704	Injection molded screening apparatuses and methods	—	2022-09-20
11426766	Injection molded screening apparatuses and methods	—	2022-08-30
11413656	Injection molded screening apparatuses and methods	—	2022-08-16
11344917	Method and apparatus for screening	Christian Newman	2022-05-31
11338327	Method and apparatuses for screening	Christian Newman	2022-05-24
11203678	Thermoplastic compositions, methods, apparatus, and uses	James R. Colgrove	2021-12-21
11198155	Injection molded screening apparatuses and methods	—	2021-12-14
11161150	Injection molded screening apparatuses and methods	James R. Colgrove	2021-11-02
11000882	Injection molded screening apparatuses and methods	—	2021-05-11
10994306	Injection molded screening apparatuses and methods	—	2021-05-04
10981197	Injection molded screening apparatuses and methods	—	2021-04-20
10974282	Method and apparatuses for screening	Christian Newman	2021-04-13

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Keith Wojciechowski — 59 Patents

Issued Patents All Time

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