Inventor
RALPH E. HARRIS
Inventor
US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling25%
F04BPositive-displacement machines for liquids25%
F16KValves25%
B23GThread cutting6%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
H04LTransmission of digital information, e.g. telegraphic communication6%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
12,492,697System and method for reduced thread stress for buttress style threads used in frac pump fluid ends202512,416,363Wear-resistant hydraulic fracturing pump valves202512,366,242Hydraulic fracturing pump health and performance monitoring using IoT sensor networks202512,060,946Valve seat with ceramic insert202412,025,231Wear-resistant hydraulic fracturing pump valves202411,448,210Valve for reciprocating pump assembly2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2025Patents assigned to SPM OIL & GAS INC (6)· patent assignee history
2022–2025Based in US· patent location history
2025Patents assigned to SPM Oil & Gas (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SPM OIL & GAS INC | 6 | 2022–2025 |
| SPM Oil & Gas | 1 | 2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 6 | 2022–2025 |