Inventor

Hans Kiefer

Inventor

Wachenheim, DE

Overview

30→

Patents

1976–2006

Patent span

Chemistry

Primary field (CPC C)

Patents· 30 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds28%

A23KFodder9%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations9%

G01TMeasurement of nuclear or x-radiation9%

A61KPreparations for medical, dental or toiletry purposes7%

C07DHeterocyclic compounds7%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium5%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

A01NPreservation of bodies of humans or animals or plants or parts thereof2%

PatentTitleYear

7,064,581'Bus interface and method for coupling a bus device to a bus'2006 6,939,951'Refolding of membrane proteins'2005 5,486,363'Preparation of choline chloride-containing powders, these powders, and their use'1996 5,468,883'Preparation of vitamin E'1995 5,300,303'Spray granules or microgranules of pure riboflavin which contain no binder are non-dusting and free-flowing, and the preparation thereof'1994 5,294,740'Preparation of formic acid by thermal cleavage of quaternary ammonium formates'1994 5,210,023'Method of purifying ferment-produced riboflavin'1993 5,206,433'Preparation of formic acid'1993 5,189,216'Isolation of a carboxylic acid from an aqueous solution thereof'1993 5,128,151'Stabilized menadione bisulfite formulations and their preparation'1992 5,095,115'Preparation of riboflavin 5\'-phosphate (FMN) and its sodium salt in a lactone'1992 5,017,700'Preparation of riboflavin-5\'-phosphate (5\'-FMN) and its sodium salt, and of riboflavin-4\',5\'-cyclophosphoric acid ester chloride as an intermediate'1991 4,977,190'Preparation of riboflavin, produced by a microbial method, in the form of spray-dried granules or microgranules'1990 4,933,564'Method of determining radiation doses by evaluating nuclear tracks in irradiated and subsequently etched foils'1990 4,921,711'Animal feed or drinking water containing propanediol formates'1990 4,735,969'Menadione choline bisulfite adduct, its preparation and antihemorrhagic compositions'1988 4,704,537'Passive dosimeter'1987 4,701,546'Preparation of 2-(N-formylamino)-propionitrile'1987 4,565,894'Preparation of ionones'1986 4,482,492'Preparation of vitamins K.sub.3 and K.sub.4 and derivatives'1984 4,454,587'Method and circuit arrangement for discriminating between pulses generated by alpha and/or beta radiators'1984 4,400,621'Detector device'1983 4,218,568'Preparation of formic acid'1980 4,217,460'Isolation of formic acid from its aqueous solutions'1980 4,134,915'Continuous manufacture of formamide'1979 4,094,594'Movie-camera with automatic fade-out shutoff'1978 4,084,891'Sound motion-picture camera'1978 4,038,311'Production of N-(1-alkenyl)-carbamyl chlorides'1977 3,983,010'Recovery of the formic acid/water azeotrope by distillation'1976 3,969,510'Method of controlling fungi'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1996Patents assigned to BASF AG (22)· patent assignee history

1976–1994Based in Wachenheim, DE· patent location history

1978–2006Patents assigned to BOSCH GMBH ROBERT (3)· patent assignee history

1978–2005Based in Stuttgart, DE· patent location history

1983–1990Patents assigned to KERNFORSCHUNGSZ KARLSRUHE (4)· patent assignee history

1983–1990Based in Eggenstein-Leopoldshafen, DE· patent location history

1994–1996Based in Neustadt, DE· patent location history

2005Patents assigned to PHASYS GMBH M (1)· patent assignee history

2006Based in Kornwestheim, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BASF AG	22	1976–1996
KERNFORSCHUNGSZ KARLSRUHE	4	1983–1990
BOSCH GMBH ROBERT	3	1978–2006
PHASYS GMBH M	1	2005

Locations

Location	Patents	Span
Wachenheim, DE	19	1976–1994
Eggenstein-Leopoldshafen, DE	4	1983–1990
Stuttgart, DE	3	1978–2005
Neustadt, DE	3	1994–1996
Kornwestheim, DE	1	2006