Inventor
Christopher J. Ziolkowski
Inventor
Elmhurst, IL, US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Mprimary
G01MTesting static or dynamic balance of machines or structures17%
G01VGeophysics17%
F17DPipe-line systems11%
Y10TTechnical subjects covered by former us classification11%
C23FNon-mechanical removal of metallic material from surface6%
E21BEarth or rock drilling6%
F16LPipes6%
G01CMeasuring distances, levels or bearings6%
G05BControl or regulating systems in general6%
G05DSystems for controlling or regulating non-electric variables6%
PatentTitleYear
9,000,778'Communication method for monitoring pipelines'20158,981,903'Device for marking out buried objects'20158,555,722'Method and apparatus for underground line crossing detection'20136,968,735'Long range data transmitter for horizontal directional drilling'20056,725,705'Enhanced acoustic detection of gas leaks in underground gas pipelines'20046,690,278'Electronic marker for metallic valve box covers'20046,112,137'Adaptive system for predictive control of district pressure regulators'20005,999,107'Remote cathodic protection monitoring system'19995,027,644'Method and apparatus for injecting acoustic signals into live gas mains'19914,646,787'Pneumatic pipe inspection device'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1999Patents assigned to INST GAS TECHNOLOGY (3)· patent assignee history
1987–1991Based in Chicago, IL, US· patent location history
1999–2015Based in Elmhurst, IL, US· patent location history
2004–2015Patents assigned to GAS TECHNOLOGY INST (6)· patent assignee history
2013–2015Patents assigned to ZIOLKOWSKI CHRISTOPHER (2)· patent assignee history
2013Patents assigned to ERSOY DANIEL ALLEN (1)· patent assignee history
2015Patents assigned to DANIELS NICKOLAS (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GAS TECHNOLOGY INST | 6 | 2004–2015 |
| INST GAS TECHNOLOGY | 3 | 1987–1999 |
| ZIOLKOWSKI CHRISTOPHERself | 2 | 2013–2015 |
| DANIELS NICKOLAS | 1 | 2015 |
| ERSOY DANIEL ALLEN | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Elmhurst, Illinois, US | 8 | 1999–2015 |
| Chicago, Illinois, US | 2 | 1987–1991 |