Inventor
Roger L. Langer
Inventor
Hudson, WI, US
Overview
21→
Patents
1977–2014
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 21 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F01Nprimary
F01NGas-flow silencers or exhaust apparatus for machines or engines in general17%
Y10TTechnical subjects covered by former us classification15%
B01DSeparation14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%
Y02TClimate change mitigation technologies related to transportation11%
C04BLime, magnesia6%
B29CShaping or joining of plastics5%
C09KMaterials for miscellaneous applications, not provided for elsewhere5%
D21HPulp compositions4%
C09DCoating compositions, e.g. paints, varnishes or lacquers3%
PatentTitleYear
8,741,200'Method of making self-supporting insulating end cone liners and pollution control devices'20148,632,727'Self-supporting insulating end cone liner and pollution control device'20148,182,751'Self-supporting insulating end cone liner and pollution control device'20127,758,795'Method of making a polluction control device and a self-supporting insulating end cone'20106,923,942'Compressible preform insulating liner'20056,475,340'Solid phase extraction membrane'20026,458,418'Method of making multilayer sheets for firestops or mounting mats'20026,365,267'Multilayer intumescent sheet and pollution control device'20026,224,835'Multilayer intumescent sheet'20016,051,193'Multilayer intumescent sheet'20005,869,010'Intumescent sheet material'19995,523,059'Intumescent sheet material with glass fibers'19965,254,410'Partially dehydrated vermiculite flakes and method of making same'19935,250,269'Catalytic converter having a metallic monolith mounted by a heat-insulating mat of refractory ceramic fibers'19935,175,197'Water-based intumescent fire barrier caulk'19925,059,637'Endothermic fire protective material'19914,600,634'Flexible fibrous endothermic sheet material for fire protection'19864,385,135'Intumescent sheet material containing low density fillers'19834,305,992'Intumescent sheet material'19814,273,879'Intumescent fire retardant composites'19814,048,363'Offset laminated intumescent mounting mat'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1999Patents assigned to MINNESOTA MINING & MFG (11)· patent assignee history
1977–1991Based in Troy Township, St. Croix County, WI, US· patent location history
1981–2014Based in Hudson, WI, US· patent location history
1981–1992Based in St. Paul, MN, US· patent location history
2000–2014Patents assigned to 3M INNOVATIVE PROPERTIES CO (10)· patent assignee history
2012–2014Patents assigned to HARDING IAN R (2)· patent assignee history
2012–2014Patents assigned to HORNBACK III LOYD R (2)· patent assignee history
2012–2014Patents assigned to LANGER ROGER L (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MINNESOTA MINING & MFG | 11 | 1977–1999 |
| 3M INNOVATIVE PROPERTIES CO | 10 | 2000–2014 |
| HARDING IAN R | 2 | 2012–2014 |
| HORNBACK III LOYD R | 2 | 2012–2014 |
| LANGER ROGER Lself | 2 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hudson, WI, US | 17 | 1981–2014 |
| St. Paul, Minnesota, US | 2 | 1981–1992 |
| Troy Township, St. Croix County, WI, US | 2 | 1977–1991 |