Matthew Hal Littlejohn
10Patents
4h-index
36Co-inventors
56Inventor score
Filing activity: Dec 17, 1996 → Aug 28, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5916997A | Weatherable copolymers | Chemistry; Metallurgy | 36 | Expired |
| US7115785B2 | Method for making salts hydroxy-substituted hydrocarbons | Chemistry; Metallurgy | 19 | Expired |
| US5756843A | Quaternary bisphenolates, methods for their preparation, and uses thereof | Performing Operations; Transporting | 5 | Expired |
| US6784253B2 | Enhanced polymerization process | Chemistry; Metallurgy | 4 | Expired |
| US7772435B2 | Method of forming a dry quaternary ammonium salt mixture | Chemistry; Metallurgy | 4 | Active |
| US9419489B2 | Slot liner for an electric machine | Electricity | 3 | Active |
| US7842188B2 | Method for removal of guanidine compound from aqueous media | Chemistry; Metallurgy | 2 | Active |
| US9359479B2 | Methods of using boron-containing additives as silicon carbide crosslinking agents | Chemistry; Metallurgy | 0 | Active |
| US9641037B2 | Stator slot liners | Performing Operations; Transporting | 0 | Active |
| US9587331B2 | Method for curing of green polysilazane-based silicon carbide precursor fibers | Textiles; Paper | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.