Inventor

Wolfgang Hechler

Inventor

Lautertal, DE

Overview

17→

Patents

1992–2019

Patent span

Chemistry

Primary field (CPC C)

Patents· 17 as inventor

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

C01Pprimary

C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds13%

C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties13%

C09DCoating compositions, e.g. paints, varnishes or lacquers11%

Y10TTechnical subjects covered by former us classification8%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein7%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments6%

A61KPreparations for medical, dental or toiletry purposes4%

A61QSpecific use of cosmetics or similar toiletry preparations4%

C03CChemical composition of glasses, glazes or vitreous enamels4%

C04BLime, magnesia4%

PatentTitleYear

10,353,265Electrophoretic fluids2019 10,126,625Particles for electrophoretic displays comprising a core and a random-copolymer coating2018 10,007,165Electrophoretic fluids2018 6,767,633'Transparent medium having angle-selective transmission or reflection properties and/or absorption properties'2004 6,648,956'Pigment preparation'2003 6,602,340'Transparent medium with angular-selective transmitting or reflecting properties'2003 6,551,397'Pigment preparation'2003 6,544,327'Pigment preparation'2003 6,511,720'Organosilicon compounds'2003 6,398,862'Pigment preparation'2002 6,287,650'Organosilicon compounds'2001 6,270,563'Pigment composition'2001 5,618,585'Process for the production of a coated system'1997 5,445,671'Offset printing ink'1995 5,389,361'Precursor preparation for the production of neutral metal oxide sols'1995 5,378,400'Preparation of metal oxide sols by electrolysis'1995 5,106,419'Glass-stable colored pigments'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2019Patents assigned to MERCK PATENT GMBH (16)· patent assignee history

1992Based in Lautertal_Reichenbach, DE· patent location history

1995–2019Based in Lautertal, DE· patent location history

2002Based in Reichenbach, DE· patent location history

2003Patents assigned to MERCK PATENT GESELLESCHAFT MIT (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MERCK PATENT GMBH	16	1992–2019
MERCK PATENT GESELLESCHAFT MIT	1	2003

Locations

Location	Patents	Span
Lautertal, DE	15	1995–2019
Reichenbach, DE	1	2002
Lautertal_Reichenbach, DE	1	1992