Inventor
Leopold Hupfer
Inventor
Friedelsheim, DE
Overview
Patents· 45 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds52%
Y02PClimate change mitigation technologies in the production or processing of goods18%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry12%
C07DHeterocyclic compounds12%
B01DSeparation3%
C11BProducing, e.g. by pressing raw materials or by extraction from waste materials, refining or preserving fats, fatty substances, e.g. lanolin, fatty oils or waxes1%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests1%
PatentTitleYear
5,705,683'Carbonylation of olefins'19985,401,873'Preparation of methyl formate'19955,294,740'Preparation of formic acid by thermal cleavage of quaternary ammonium formates'19945,225,602'Phenylacetaldehydes and the preparation of phenylacetaldehydes'19935,200,163'Removal of phosgene from off-gases'19935,200,560'Preparation of carboxylic chlorides'19935,196,611'Preparation of alkyl, alkenyl, and alkynyl chlorides'19935,149,861'Recovery of trialkylamines and methyl formate from mixtures obtained in the preparation of trimethylolalkanes'19925,130,435'Preparation of vinyl ethers'19925,000,832'Purification of aqueous glyoxal solutions'19914,990,684'Preparation of phenylacetaldehydes'19914,980,511'Preparation of aldehydes and/or ketones BU conversion of epoxides'19904,968,831'Preparation of .alpha.-ketocarboxylic esters'19904,960,954'Preparation of enol ethers'19904,943,667'Preparation of phenylethanols'19904,902,828'Recovery of aqueous glyoxylic acid solutions'19904,891,451'Preparation of vinyl ethers'19904,885,395'Preparation of alpha, beta-unsaturated ketones'19894,874,899'Preparation of unsaturated and saturated ketones'19894,866,210'Preparation of ketones'19894,851,584'Preparation of carbonyl compounds'19894,824,973'Preparation of 4-formyltetrahydropyrans'19894,814,513'Preparation of carbonyl compounds'19894,812,593'Preparation of bifunctional compounds'19894,769,200'Compounding crystalline organic materials'19884,728,435'Decolorization of aqueous glyoxal solutions'19884,698,434'Preparation of hydroxymethylimidazoles'19874,677,230'Preparation of 2-methyl-2-alkenals'19874,594,461'Preparation of trimethylolalkanes from alkanals and formaldehyde'19864,538,009'Preparation of substituted phenols'19854,521,632'Purification of aqueous glyoxal solutions'19854,450,277'Preparation of 1-substituted imidazoles'19844,429,155'Preparation of aromatic amines'19844,393,251'Preparation of propanediols using a copper-and zinc containing hydrogenation catalyst'19834,386,219'Hydrogenation catalysts for the preparation of propanediols and processes for the preparation of propanediols, using such catalysts'19834,386,018'Hydrogenation catalysts for the preparation of propanediols'19834,355,180'Preparation of primary aromatic amines from cyclic alcohols and/or ketones'19824,347,388'3,6-Dimethyl-3-hydroxy-oct-1-ynes and -oct-1-enes, derivatives of these, and their use as scents, and in the preparation of 3,6-dimethyl-3-hydroxy-octane'19824,298,733'Preparation of cis-2,6-dimethylmorpholine'19814,283,534'Reductive alkylation of nitrogen heterocycles'19814,212,972'Preparation of cis-2,6-dimethylmorpholine'19804,196,147'Manufacture of N-alkylanilines'19804,105,669'Manufacture of 2-amino-1-alcohols'19784,068,077'Manufacture of N-substituted tetrahydro-1,4-oxazines'19783,972,938'Manufacture of hexamethylene diamine'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1998Patents assigned to BASF AG (45)· patent assignee history
1976–1998Based in Friedelsheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 45 | 1976–1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Friedelsheim, DE | 45 | 1976–1998 |