Inventor
Allen Lindfors
Inventor
Inyokern, CA, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling60%
G01DMeasuring not specially adapted for a specific variable10%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure10%
H03FAmplifiers10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
7,975,592'Perforating apparatus, firing assembly, and method'20117,350,448'Perforating apparatus, firing assembly, and method'20087,284,601'Casing conveyed well perforating apparatus and method'20077,284,489'Casing conveyed well perforating apparatus and method'20076,962,202'Casing conveyed well perforating apparatus and method'20056,557,636'Method and apparatus for perforating a well'20035,701,101'Charge amplifier for blast gauges'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997Patents assigned to US ARMY (1)· patent assignee history
1997Based in Ridgecrest, CA, US· patent location history
2003–2011Patents assigned to SHELL OIL CO (6)· patent assignee history
2003–2011Based in Inyokern, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SHELL OIL CO | 6 | 2003–2011 |
| US ARMY | 1 | 1997 |
Locations
| Location | Patents | Span |
|---|---|---|
| Inyokern, California, US | 6 | 2003–2011 |
| Ridgecrest, California, US | 1 | 1997 |