Depolymerization of lignin using a supported metal catalyst
US-2025353988-A1 · Nov 20, 2025 · US
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Singh Seema patents
Singh Seema is listed as an inventor on 51 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Singh Seema |
| Total patents | 51 |
| First publication | Nov 12, 2015 |
| Latest publication | Nov 20, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Methods and compositions useful for oxidation of biomass to carboxylic acids using polyoxometalate ionic liquids
US-2025326706-A1 · Oct 23, 2025 · US
Dissolution and depolymerization of plastics
US-2025188247-A1 · Jun 12, 2025 · US
High gravity, fed-batch ionic liquid based process for deconstructing biomass
US-12305213-B2 · May 20, 2025 · US
Protic or phosphate-based ionic liquids useful for lignocellulosic processing
US-12123038-B2 · Oct 22, 2024 · US
Ammonium based ionic liquids useful for lignocellulosic processing
US-12049654-B2 · Jul 30, 2024 · US
Renewable aromatics from lignocellulosic lignin
US-12012429-B2 · Jun 18, 2024 · US
Method of adjusting the pH of a pretreatment solution using carbon dioxide useful for integrating saccharification and fermentation of a biomass
US-11976311-B2 · May 7, 2024 · US
Engineered hosts with exogenous ligninase and uses thereof
US-11453895-B1 · Sep 27, 2022 · US
High gravity, fed-batch ionic liquid based process for deconstructing biomass
US-2022170053-A1 · Jun 2, 2022 · US
Recent patents
Latest publications not already listed above.
Conversion of lignin to ionic liquids
US-11254637-B2 · Feb 22, 2022 · US
Renewable aromatics from lignocellulosic lignin
US-2021284676-A1 · Sep 16, 2021 · US
High gravity, fed-batch ionic liquid based process for deconstructing biomass
US-11118197-B2 · Sep 14, 2021 · US
Promoters and uses thereof
US-11098306-B1 · Aug 24, 2021 · US
Method of adjusting the pH of a pretreatment solution using carbon dioxide useful for integrating saccharification and fermentation of a biomass
US-2021214757-A1 · Jul 15, 2021 · US
Conversion of sugars to ionic liquids
US-2021198708-A1 · Jul 1, 2021 · US
Methods of synthesizing ionic liquids from primary alcohol-containing lignin compounds
US-11028249-B2 · Jun 8, 2021 · US
Ammonium based ionic liquids useful for lignocellulosic processing
US-2021155964-A1 · May 27, 2021 · US
Conversion of sugars to ionic liquids
US-10934568-B2 · Mar 2, 2021 · US
Renewable aromatics from lignocellulosic lignin
US-10934321-B2 · Mar 2, 2021 · US
Ammonium based ionic liquids useful for lignocellulosic processing
US-10907184-B2 · Feb 2, 2021 · US
Adjusting the pH of a pretreatment solution using carbon dioxide useful for integrating saccharification and fermentation
US-10837038-B2 · Nov 17, 2020 · US
Magnetically-recoverable catalysts for depolymerization
US-10767027-B1 · Sep 8, 2020 · US
Use of renewable deep eutectic solvents in a one-pot process for a biomass
US-2020216863-A1 · Jul 9, 2020 · US
Compositions and methods for the dissolution and depolymerization of lignin
US-10703770-B2 · Jul 7, 2020 · US
Novel compositions and methods for synthesizing deep eutectic solvents from lignin derived phenolic compounds
US-2020062681-A1 · Feb 27, 2020 · US
Novel protic or phosphate-based ionic liquids useful for lignocellulosic processing
US-2019292572-A1 · Sep 26, 2019 · US
Conversion of lignin to ionic liquids
US-2019263748-A1 · Aug 29, 2019 · US
Renewable aromatics from lignocellulosic lignin
US-2019153011-A1 · May 23, 2019 · US
Conversion of sugars to ionic liquids
US-2019136281-A1 · May 9, 2019 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Nat Tech & Eng Solutions Sandia Llc | 39 |
| Univ California | 13 |
| Univ South Alabama | 7 |
| Sandia Corp | 7 |
| Singh Seema | 3 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C12P19/02 | 25 |
| C12P2201/00 | 19 |
| C12P19/14 | 17 |
| C08H8/00 | 13 |
| C12P7/10 | 13 |