Inventor
Peter van der Heem
Inventor
Perryville, MD, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C01Bprimary
C01BNon-metallic elements29%
C09DCoating compositions, e.g. paints, varnishes or lacquers14%
C12HPasteurisation, sterilisation, preservation, purification, clarification or ageing of alcoholic beverages14%
A61KPreparations for medical, dental or toiletry purposes7%
A61QSpecific use of cosmetics or similar toiletry preparations7%
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals7%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds7%
C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties7%
C12CBeer7%
PatentTitleYear
4,847,235'Silica product'19894,758,440'Process for chillproofing a malt beverage and silica product for chillproofing'19884,595,578'Stabilized silica gel and process for making same'19864,221,771'Preparation of dawsonite'19804,144,081'Nitrocellulose coating composition'19794,045,240'Amorphous precipitated siliceous pigments and methods for their production'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1980Patents assigned to HUBER CORP J M (3)· patent assignee history
1977–1986Based in Perryville, MD, US· patent location history
1986Patents assigned to SCM CORP (1)· patent assignee history
1988Patents assigned to HEEM PETER V D (1)· patent assignee history
1988–1989Based in Baltimore, MD, US· patent location history
1989Patents assigned to SCM GLIDCO ORGANICS CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HUBER CORP J M | 3 | 1977–1980 |
| HEEM PETER V D | 1 | 1988 |
| SCM CORP | 1 | 1986 |
| SCM GLIDCO ORGANICS CORP | 1 | 1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Perryville, Maryland, US | 4 | 1977–1986 |
| Baltimore, Maryland, US | 2 | 1988–1989 |