Gerrit J. Van Keimpema

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Woerden, NL

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Patents Grantslast 30 patents

Information Patent Grant
Barrel with flanged body
- Patent number 5,996,835
- Issue date Dec 7, 1999
- Koninklijke Emballage Industrie Van Leer N.V.
- Edward James Farrington
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Thermoplastic container having end wall butt-welded to body
- Patent number 4,962,862
- Issue date Oct 16, 1990
- Koninklijke Emballage Industrie Van Leer B.V.
- Edward J. Farrington
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Container with integral foldable handle
- Patent number 4,944,399
- Issue date Jul 31, 1990
- Koninklijke Emballage Industrie Van Leer B.V.
- Cornelis A. Ten Bruggencate
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Device for the production of a tubular object
- Patent number 4,750,873
- Issue date Jun 14, 1988
- Koninklijke Emballage Industrie Van Leer B.V.
- David O. Loe
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process and device for connecting together by heated-tool butt-weld...
- Patent number 4,726,866
- Issue date Feb 23, 1988
- Koninklijke Emballage Industrie Van Leer B.V.
- Gerrit J. Van Keimpema
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL