Inventor
John Patrick Dilger
Inventor
Marshalltown, IA, US
Overview
Patents· 16 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties28%
G01MTesting static or dynamic balance of machines or structures16%
G01DMeasuring not specially adapted for a specific variable12%
F41BWeapons for projecting missiles without use of explosive or combustible propellant charge8%
G01FMeasuring volume, volume flow, mass flow or liquid level8%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock8%
Y10TTechnical subjects covered by former us classification8%
G01GWeighing4%
G01RMeasuring electric variables4%
G05DSystems for controlling or regulating non-electric variables4%
PatentTitleYear
6,879,936'Diagnostic apparatus and methods for a chemical detection system'20056,796,324'Fugitive emission collection device'20046,654,470'Frequency warping for improving resonator signal-to-noise ratio'20036,536,469'Self-centering magnet assembly for use in a linear travel measurement device'20036,515,474'Linearized magnetic displacement sensor'20036,408,674'Pressure activated calibration system for chemical sensors'20026,345,234'Fugitive emission sensing system'20026,222,366'High frequency measuring circuit with inherent noise reduction for resonating chemical sensors'20016,191,574'Bow-mounted apparatus for detection and quantification of deviations in dynamic arrow position'20016,161,420'High frequency measuring circuit'20006,060,881'Flux shaping pole pieces for a magnetic displacement sensor'20006,044,688'Device for ejecting a metered quantity of vaporized fluid'20006,029,506'Sample retrieval system'20006,029,120'Bow-mounted chronograph'20005,970,778'Thermally activated calibration system for chemical sensors'19995,670,876'Magnetic displacement sensor including first and second flux paths wherein the first path has a fixed reluctance and a sensor disposed therein'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–2005Patents assigned to FISHER CONTROLS INT (11)· patent assignee history
1997–2005Based in Marshalltown, IA, US· patent location history
2000Patents assigned to INNOVENTIVE TECHNOLOGIES AND S (1)· patent assignee history
2002Patents assigned to FISHER CONTROLS INTERNAT (1)· patent assignee history
2003Patents assigned to FISHER ROSEMOUNT SYSTEMS INC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FISHER CONTROLS INT | 11 | 1997–2005 |
| FISHER ROSEMOUNT SYSTEMS INC | 2 | 2003 |
| FISHER CONTROLS INTERNAT | 1 | 2002 |
| INNOVENTIVE TECHNOLOGIES AND S | 1 | 2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Marshalltown, IA, US | 16 | 1997–2005 |