Inventor
Reinhard Leppkes
Inventor
Bobenheim-Roxheim, DE
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds29%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests29%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form14%
C08JWorking-up14%
Y10TTechnical subjects covered by former us classification14%
PatentTitleYear
5,420,170'Preparation of flexible, soft polyurethane foams having viscoelastic, structure-borne soundproofing properties, and polyoxyalkylene-polyol mixtures which can be used for this purpose'19955,059,633'Preparation of flexible polyurethane foams having low compressive strength and block polyoxypropylenepolyoxyethylenepolyol mixtures which can be used for this purpose'19914,996,103'Composite elements having improved resistance against stress cracking corrosion, most preferably for low temperature housing compartments'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1995Patents assigned to BASF AG (2)· patent assignee history
1991Patents assigned to HENN ROLF (1)· patent assignee history
1991Patents assigned to LEPPKES REINHARD (1)· patent assignee history
1991–1995Based in Bobenheim-Roxheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 2 | 1991–1995 |
| HENN ROLF | 1 | 1991 |
| LEPPKES REINHARDself | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bobenheim-Roxheim, DE | 3 | 1991–1995 |