Alignment sub
US-D1121788-S · Apr 7, 2026 · US
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Mulhern Eric patents
Mulhern Eric is listed as an inventor on 48 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Mulhern Eric |
| Total patents | 48 |
| First publication | Jul 14, 2016 |
| Latest publication | Apr 7, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Single charge perforation gun and system
US-12215576-B2 · Feb 4, 2025 · US
Perforating gun orientation system
US-2024392662-A1 · Nov 28, 2024 · US
Perforating gun orientation system
US-12078038-B2 · Sep 3, 2024 · US
Alignment sub and perforating gun assembly with alignment sub
US-11988049-B2 · May 21, 2024 · US
Perforating gun assembly having seal element of tandem seal adapter and coupling of housing intersecting with a common plane perpendicular to longitudinal axis
US-11788389-B2 · Oct 17, 2023 · US
Perforating gun assembly and wellbore tool string with tandem seal adapter
US-11661823-B2 · May 30, 2023 · US
Detonation activated wireline release tool
US-11634956-B2 · Apr 25, 2023 · US
Perforating gun system with electrical connection assemblies
US-11608720-B2 · Mar 21, 2023 · US
Alignment sub and perforating gun assembly with alignment sub
US-2023016759-A1 · Jan 19, 2023 · US
Recent patents
Latest publications not already listed above.
Tandem seal adapter for use with a wellbore tool, and wellbore tool string including a tandem seal adapter
US-11542792-B2 · Jan 3, 2023 · US
Perforating gun orientation system
US-2022372851-A1 · Nov 24, 2022 · US
Hydraulic underbalance initiated safety firing head, well completion apparatus incorporating same, and method of use
US-11408258-B2 · Aug 9, 2022 · US
Alignment sub and orienting sub adapter
US-11339614-B2 · May 24, 2022 · US
Perforating gun assembly and wellbore tool string with tandem seal adapter
US-2021317728-A1 · Oct 14, 2021 · US
Alignment sub and orienting sub adapter
US-2021301599-A1 · Sep 30, 2021 · US
Perforation gun components and system
US-11125056-B2 · Sep 21, 2021 · US
Single charge perforation gun and system
US-2021238966-A1 · Aug 5, 2021 · US
Perforating gun assembly having seal element of tandem seal adapter and coupling of housing intersecting with a common plane perpendicular to longitudinal axis
US-2021222526-A1 · Jul 22, 2021 · US
Logging drone with wiper plug
US-2021215039-A1 · Jul 15, 2021 · US
Detonation activated wireline release tool
US-2021198964-A1 · Jul 1, 2021 · US
Alignment sub
US-D922541-S · Jun 15, 2021 · US
Detonation activated wireline release tool
US-11021923-B2 · Jun 1, 2021 · US
Hydraulic underbalance initiated safety firing head, well completion apparatus incorporating same, and method of use
US-2021079769-A1 · Mar 18, 2021 · US
Tandem seal adapter for use with a wellbore tool, and wellbore tool string including a tandem seal adapter
US-2020399995-A1 · Dec 24, 2020 · US
Hydraulic underbalance initiated safety firing head, well completion apparatus incorporating same, and method of use
US-10865626-B2 · Dec 15, 2020 · US
Tandem sub
US-D904475-S · Dec 8, 2020 · US
Alignment sub
US-D903064-S · Nov 24, 2020 · US
Perforation gun components and system
US-10844697-B2 · Nov 24, 2020 · US
Electronic time delay fuse
US-10816311-B2 · Oct 27, 2020 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| DynaEnergetics Europe GmbH | 31 |
| Dynaenergetics Gmbh & Co Kg | 19 |
| Jdp Eng And Machine Inc | 6 |
| Jdp Eng & Machine Inc | 2 |
| Dynaenergetics Canada Inc | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B43/119 | 36 |
| E21B43/1185 | 32 |
| F42D1/043 | 28 |
| F42C19/06 | 26 |
| F42D1/02 | 24 |