Inventor

Gerd Schaefer

Inventor

Monsheim, DE

Overview

7→

Patents

1983–2009

Patent span

Chemistry

Primary field (CPC C)

Patents· 7 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Cprimary

C07CAcyclic or carbocyclic compounds33%

B27LRemoving bark or vestiges of branches17%

C07BGeneral methods of organic chemistry17%

B05BSpraying apparatus8%

B27MWorking of wood not provided for in subclasses b27b - b27l8%

B27NManufacture by dry processes of articles, with or without organic binding agents, made from particles or fibres consisting of wood or other lignocellulosic or like organic material8%

Y10TTechnical subjects covered by former us classification8%

PatentTitleYear

7,605,292'Method for the separation of polymeric by-products from 1,4-butynediol'2009 7,572,941'Method for the separation of polymeric by-products from 1,4-butynediol'2009 7,538,254'Method for the separation of polymeric by-products from 1,4-butynediol'2009 7,524,996'Method for the separation of polymeric by-products from 1,4-butynediol'2009 5,647,417'Long-timber chipping machine'1997 5,074,945'Process and device for producing a coherent web from long slivers'1991 4,413,788'Device for the feeding of enamel to an electrostatic paint emitter'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to RANSBURG GMBH (1)· patent assignee history

1983Based in Heusenstamm, DE· patent location history

1991–1997Patents assigned to INTER WOOD MASCHINEN (2)· patent assignee history

1991–1997Based in Saint Nom la Breteche, FR· patent location history

2009Patents assigned to BASF AG (4)· patent assignee history

2009Based in Monsheim, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BASF AG	4	2009
INTER WOOD MASCHINEN	2	1991–1997
RANSBURG GMBH	1	1983

Locations

Location	Patents	Span
Monsheim, DE	4	2009
Saint Nom la Breteche, FR	2	1991–1997
Heusenstamm, DE	1	1983