Valve assemblies, valve assemblies for use with downhole components and related methods
US-2025361789-A1 · Nov 27, 2025 · US
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De Werff Randy patents
De Werff Randy is listed as an inventor on 5 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | De Werff Randy |
| Total patents | 5 |
| First publication | Nov 14, 2024 |
| Latest publication | Nov 27, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Valve assemblies, valve assemblies for use with downhole pumps and related methods
US-12460630-B2 · Nov 4, 2025 · US
Methods of forming and restricting fluid flow with a valve assembly
US-2025172055-A1 · May 29, 2025 · US
Ball check-valve for linear reciprocating downhole pumps
US-12209484-B2 · Jan 28, 2025 · US
Valve assemblies, valve assemblies for use in plunger applications and related methods
US-2024376885-A1 · Nov 14, 2024 · US
Recent patents
Latest publications not already listed above.
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Championx Llc | 5 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B43/127 | 5 |
| E21B2200/04 | 5 |
| E21B34/08 | 3 |
| F04B53/1007 | 3 |
| F04B53/10 | 3 |