Inventor
George D. Pfaffmann
Inventor
Farmington, MI, US
Overview
34→
Patents
1985–2013
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 34 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C21Dprimary
C21DModifying the physical structure of ferrous metals26%
Y02PClimate change mitigation technologies in the production or processing of goods13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
Y10TTechnical subjects covered by former us classification9%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material7%
B29CShaping or joining of plastics7%
B65BMachines, apparatus or devices for, or methods of, packaging articles or materials7%
H05BElectric heating7%
A61FFilters implantable into blood vessels4%
B22FWorking metallic powder1%
PatentTitleYear
8,372,222'Method of producing locally austempered ductile iron'20137,269,986'Method of forming a tubular blank into a structural component and die therefor'20077,024,897'Method of forming a tubular blank into a structural component and die therefor'20067,003,996'Method of forming a tubular blank into a structural component and die therefor'20066,613,164'Method of forming a tubular blank into a structural component and die therefor'20036,322,645'Method of forming a tubular blank into a structural component and die therefor'20015,373,143'Apparatus and method of measuring temperature'19945,302,215'Method and apparatus for selectively heating a workpiece subjected to low temperature thermomechanical processing'19945,250,776'Apparatus and method of measuring temperature'19935,157,232'Method and apparatus for inductively heating asymmetrically shaped workpieces'19925,117,613'Induction heating and package sealing system and method'19925,025,123'Apparatus and method for sealing a lid onto a container'19915,009,395'Method and apparatus for selectively heating a workpiece subjected to low temperature thermomechanical processing'19914,996,826'Apparatus and method for sealing a lid onto a container'19914,984,414'Apparatus and method for sealing a lid onto a container'19914,941,306'Apparatus and method for sealing a lid onto a container'19904,897,518'Method of monitoring induction heating cycle'19904,894,501'Method and apparatus for induction heating of gear teeth'19904,855,556'Method and apparatus for hardening gears and similar workpieces'19894,855,551'Method and apparatus for hardening gears'19894,816,633'Method of monitoring induction heating cycle'19894,791,259'Method and apparatus for retaining a valve seat insert'19884,785,147'System for hardening gears by induction heating'19884,757,170'Method and apparatus for induction heating gears and similar workpieces'19884,749,834'Method and apparatus of hardening gears by induction heating'19884,744,836'Method for selectively heating a workpiece subjected to low temperature thermomechanical processing'19884,715,907'Method for heat treating ferrous parts'19874,704,252'Isostatic hot forming of powder metal material'19874,675,488'Method for hardening gears by induction heating'19874,675,057'Method of heat treating using eddy current temperature determination'19874,637,844'Method for heat treating ferrous parts'19874,625,090'Apparatus for inductively heat treating workpiece bore walls'19864,592,537'Apparatus for heat treating and sizing thin walled articles'19864,531,987'Method for inductively heat treating workpiece bore walls'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–1986Patents assigned to PARK OHIO INDUSTRIES INC (2)· patent assignee history
1985–1994Based in Farmington, MI, US· patent location history
1986–1994Patents assigned to TOCCO INC (22)· patent assignee history
1990–1991Patents assigned to CONTINENTAL CAN CO (4)· patent assignee history
1990–2013Based in Farmington Hills, MI, US· patent location history
2003–2006Patents assigned to HOT METAL GAS FORMING INTELLEC (3)· patent assignee history
2013Patents assigned to AJAX TOCCO MAGNETHERMIC CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOCCO INC | 22 | 1986–1994 |
| CONTINENTAL CAN CO | 4 | 1990–1991 |
| HOT METAL GAS FORMING INTELLEC | 3 | 2003–2006 |
| PARK OHIO INDUSTRIES INC | 2 | 1985–1986 |
| AJAX TOCCO MAGNETHERMIC CORP | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Farmington, MI, US | 23 | 1985–1994 |
| Farmington Hills, MI, US | 11 | 1990–2013 |