David Matthews
54Patents
15h-index
120Co-inventors
87Inventor score
Filing activity: Feb 28, 1983 → Jun 21, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5750373A | Enrichment method for variant proteins having altered binding properties, M13 phagemids, and growth hormone variants | Emerging Cross-Sectional Technologies | 617 | Expired |
| US5821047A | Monovalent phage display | Emerging Cross-Sectional Technologies | 534 | Expired |
| US5780279A | Method of selection of proteolytic cleavage sites by directed evolution and phagemid display | Chemistry; Metallurgy | 92 | Expired |
| US6138436A | Feeding of horizontal form-fill-and-seal zipper machine | Performing Operations; Transporting | 71 | Expired |
| US6040136A | Enrichment method for variant proteins with altered binding properties | Emerging Cross-Sectional Technologies | 65 | Expired |
| US7704995B2 | Protein kinase modulators and methods of use | Chemistry; Metallurgy | 60 | Expired |
| US5846765A | Identification of novel substrates | Chemistry; Metallurgy | 57 | Expired |
| US4532628A | System for periodically reading all memory locations to detect errors | Physics | 41 | Expired |
| US7261468B2 | Easy open feature for reclosable bags having a longitudinal fin seal | Performing Operations; Transporting | 28 | Expired |
| US6943811B2 | Apparatus and method of managing data objects | Physics | 19 | Expired |
| US6751932B1 | Method for attaching reclosable zipper strip transversely to a sheet of thermoplastic film material | Performing Operations; Transporting | 18 | Expired |
| US6474045B2 | Methods of making slide-zippered reclosable packages on horizontal form-fill-seal machines | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6154934A | Reclosable zipper with fusible rib layer | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6910995B2 | Easy open feature for reclosable bags having a longitudinal fin seal | Performing Operations; Transporting | 17 | Expired |
| US6151868A | Transverse direction zipper attaching apparatus and method | Performing Operations; Transporting | 16 | Expired |
| US7490451B2 | Method and apparatus for making block bottom pillow top bags | Performing Operations; Transporting | 14 | Expired |
| US6428642B1 | Transverse directional zipper with a double seal flange profile configuration | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7527585B2 | Methods of making reclosable packages for vacuum, pressure and/or liquid containment | Performing Operations; Transporting | 10 | Expired |
| US8170928B2 | System and method of transferring data through transaction process | Physics | 10 | Active |
| US6874298B2 | Methods of making slide-zippered reclosable packages on horizontal form-fill-seal machines | Emerging Cross-Sectional Technologies | 10 | Expired |
| US8204824B2 | System and method of account reconciliation for electronic transactions | Physics | 10 | Active |
| US6515109B1 | Human ECT2 polypeptide | Chemistry; Metallurgy | 10 | Expired |
| US8311944B2 | System and method of currency conversion in financial transaction process | Physics | 9 | Active |
| US10064868B2 | (Alpha-substituted aralkylamino and heteroarylalkylamino) pyrimidinyl and 1,3,5-triazinyl benzimidazoles, pharmaceutical compositions thereof, and their use in treating proliferative diseases | Chemistry; Metallurgy | 7 | Active |
| US6397561B1 | Transverse direction zipper with edges unsecured | Emerging Cross-Sectional Technologies | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.