Plunger or piston with hardened insert
US-12404942-B2 · Sep 2, 2025 · US
This page is not indexed by search engines while we improve data quality.
Olis James Alan patents
Olis James Alan is listed as an inventor on 24 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Olis James Alan |
| Total patents | 24 |
| First publication | Jan 2, 2020 |
| Latest publication | Sep 2, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Flexible manifold for reciprocating pump
US-12247563-B2 · Mar 11, 2025 · US
Flexible Manifold for Reciprocating Pump
US-2024254986-A1 · Aug 1, 2024 · US
Elastic guided valve
US-2024167576-A1 · May 23, 2024 · US
Flexible manifold for reciprocating pump
US-11965503-B2 · Apr 23, 2024 · US
Pump fluid end with easy access suction valve
US-11739748-B2 · Aug 29, 2023 · US
Easy change pump plunger
US-11560888-B2 · Jan 24, 2023 · US
Horizontal balanced guided valve
US-11530750-B2 · Dec 20, 2022 · US
Pump fluid end with positional indifference for maintenance
US-11441687-B2 · Sep 13, 2022 · US
Flexible Manifold for Reciprocating Pump
US-2022154704-A1 · May 19, 2022 · US
Recent patents
Latest publications not already listed above.
Pump valve seat with supplemental retention
US-11231111-B2 · Jan 25, 2022 · US
Valve assembly for a fluid end with limited access
US-11105327-B2 · Aug 31, 2021 · US
Plunger or Piston with Hardened Insert
US-2021254735-A1 · Aug 19, 2021 · US
Pump Valve Assembly
US-2021254611-A1 · Aug 19, 2021 · US
Pump valve assembly
US-11073144-B1 · Jul 27, 2021 · US
Two-piece guide bushing
US-11059154-B2 · Jul 13, 2021 · US
Horizontal Balanced Guided Valve
US-2021190211-A1 · Jun 24, 2021 · US
Pump Fluid End With Positional Indifference For Maintenance
US-2020362971-A1 · Nov 19, 2020 · US
Valve Assembly for a Fluid End with Limited Access
US-2020362975-A1 · Nov 19, 2020 · US
Easy Change Pump Plunger
US-2020362856-A1 · Nov 19, 2020 · US
Pump Fluid End With Easy Access Suction Valve
US-2020362853-A1 · Nov 19, 2020 · US
Pump Valve Seat With Supplemental Retention
US-2020362970-A1 · Nov 19, 2020 · US
Pump plunger with wrench features
US-10808846-B1 · Oct 20, 2020 · US
Two-piece guide bushing
US-2020001444-A1 · Jan 2, 2020 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Halliburton Energy Services Inc | 24 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| F04B15/02 | 17 |
| F04B1/053 | 17 |
| F04B23/06 | 17 |
| F04B1/0461 | 16 |
| F04B53/22 | 14 |