Inventor
John Raymond Krahn
Inventor
Schenectady, NY, US
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Rprimary
G01RMeasuring electric variables19%
Y10TTechnical subjects covered by former us classification11%
H01BCables8%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%
H01CResistors6%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%
G01NInvestigating or analysing materials by determining their chemical or physical properties4%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy4%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution4%
B60LPropulsion of electrically-propelled vehicles2%
PatentTitleYear
10,283,804Flange assembly for use with a solid oxide fuel cell system201910,062,481Electrical conductor insulation system and method of fabrication20189,824,797'Resistive grid elements having a thermosetting polymer'20179,810,730'System and method for electrical short detection'20179,070,491'Polymer nanocomposites for electronic applications'20159,012,060'System and method for battery insulation'20158,980,053'Transformer paper and other non-conductive transformer components'20158,409,692'Insulation structure for resistor grids'20138,202,606'Insulation structure for resistor grids'20126,582,825'Hydrophobicity imparting particulate'20036,573,727'Method and apparatus for evaluation of insulation in variable speed motors'20036,448,758'Method for determining wear and other characteristics of electrodes in high voltage equipment'20026,407,903'PDA coupler containing a flexible joint'20026,323,659'Material for improved sensitivity of stray field electrodes'20016,303,224'Method for attaching a fluoride-based polymer layer to a polyphenylene ether or polystyrene layer, and related articles'20016,300,767'System and apparatus for predicting failure in insulated systems'20016,285,538'Partial discharge coupler'20016,262,550'Electrical motor monitoring system and method'20016,192,317'Statistical pattern analysis methods of partial discharge measurements in high voltage insulation'20016,114,863'Method for determining the presence of water in materials'20006,088,658'Statistical pattern analysis methods of partial discharge measurements in high voltage insulation'20005,991,137'Partial discharge coupler'19995,312,151'Boot protector'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994Patents assigned to KRAHN JOHN (1)· patent assignee history
1994Based in Vancouver, CA· patent location history
1999–2019Patents assigned to GEN ELECTRIC (20)· patent assignee history
1999–2018Based in Schenectady, NY, US· patent location history
2000–2017Based in Niskayuna, NY, US· patent location history
2001Patents assigned to ATOCHEM NORTH AMERICA ELF (1)· patent assignee history
2001Patents assigned to ELF AUTOCHEM S A (1)· patent assignee history
2012–2013Patents assigned to KRAHN JOHN RAYMOND (2)· patent assignee history
2019Based in Mesa, AZ, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 20 | 1999–2019 |
| KRAHN JOHN RAYMONDself | 2 | 2012–2013 |
| ATOCHEM NORTH AMERICA ELF | 1 | 2001 |
| ELF AUTOCHEM S A | 1 | 2001 |
| KRAHN JOHNself | 1 | 1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Schenectady, New York, US | 13 | 1999–2018 |
| Niskayuna, New York, US | 8 | 2000–2017 |
| Mesa, AZ, US | 1 | 2019 |
| Vancouver, CA | 1 | 1994 |