Inventor
Klemens Massonne
Inventor
Bad Duerkheim, DE
Overview
Patents· 44 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds19%
C07CAcyclic or carbocyclic compounds12%
C08JWorking-up10%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients7%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%
C07BGeneral methods of organic chemistry5%
C08LCompositions of macromolecular compounds4%
A61LMethods or apparatus for sterilising materials or objects in general3%
B01DSeparation3%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%
PatentTitleYear
10,995,429Method for producing carbon fibers from cellulose fibers treated with sulfonic acid salts202110,618,873Method for producing C4-C15 lactams20209,234,137'Flame retardant'20169,115,312'Flame retardant'20158,952,186'Method for dehydrating a carbohydrate-comprising'20158,927,737'Process for purifying ionic liquids'20158,759,411'Derivatives of diphosphines as flame retardants for polyurethanes'20148,691,896'Halogen-free, phosphorus-containing flame-retardant polymer foams'20148,562,862'Water absorbing material'20138,541,612'Unsaturated diphosphine monoxides'20138,519,035'Cyclic phosphines as flame retardants'20138,486,669'Enzymatic hydrolysis of a cellulose material treated with an ionic liquid'20138,404,149'Absorbent article comprising water-absorbing material'20138,389,740'Process for preparing ionic liquids by anion exchange'20138,382,962'Distillation of ionic liquids'20138,252,943'Method for the production of compounds with quaternary sp2-hybridised nitrogen atoms'20128,231,792'Purification of ionic liquids'20128,163,215'Method of forming regenerated carbohydrates with solvent systems based on molten ionic liquids'20128,163,951'Method for producing quaternary ammonium compounds'20128,044,120'Ionic liquids for solubilizing polymers'20117,858,802'Method of preparing ionic liquids'20107,767,852'Method for the separation of acids from chemical reaction mixtures by means of ionic fluids'20107,754,822'Method for the secondary crosslinking of hydrogels with bicyclic amide acetals'20107,626,058'Processes for producing ethylene amines'20097,622,617'Method for producing α-bisabolol from farnesol'20097,547,807'Method for producing phosphonium salts'20097,501,522'Method for the production of purified 1,3-substituted imidazolium salts'20097,368,604'Method for the production of acylphosphine oxides'20087,351,339'Method for the separation of acids from chemical reaction mixtures by means of ionic fluids'20087,319,161'Method for producing cyclohexane dicarboxylic acids and the derivatives thereof'20087,183,360'Method for crosslinking hydrogels with morpholine-2,3-diones'20076,872,377'Preparation of hydrogen peroxide from hydrogen and oxygen'20056,548,461'Polyalkene alcohol polyetheramines and their use in fuels and lubricants'20036,375,920'Process for the manufacture of hydrogen peroxide'20026,147,227'Process for preparing phthalides'20006,028,204'Process for preparing phthalides'20006,020,501'Process for preparing phthalides'20005,969,162'Process for purifying phthalide'19995,969,016'Molded materials based on polycarbonates'19995,939,595'Preparation of diarylethanes'19995,866,733'Preparation of diarylethanes'19995,639,880'Preparation of amine oxides'19975,502,188'Production of almost colorless solutions of n-methylmorpholine oxide'19965,393,874'Preparation of N-hydroxy-N\'-diazenium oxides'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–2012Patents assigned to BASF AG (23)· patent assignee history
1995–2003Based in Westheim, DE· patent location history
2005–2021Based in Bad Duerkheim, DE· patent location history
2009–2020Patents assigned to BASF SE (18)· patent assignee history
2012–2016Patents assigned to MASSONNE KLEMENS (17)· patent assignee history
2012–2013Patents assigned to STEGMANN VEIT (5)· patent assignee history
2014–2016Patents assigned to FLECKENSTEIN CHRISTOPH (4)· patent assignee history
2020Based in Bad Durkheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 23 | 1995–2012 |
| BASF SE | 18 | 2009–2020 |
| MASSONNE KLEMENSself | 17 | 2012–2016 |
| STEGMANN VEIT | 5 | 2012–2013 |
| FLECKENSTEIN CHRISTOPH | 4 | 2014–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bad Duerkheim, DE | 31 | 2005–2021 |
| Westheim, DE | 12 | 1995–2003 |
| Bad Durkheim, DE | 1 | 2020 |