David A. Johnson
59Patents
15h-index
49Co-inventors
84Inventor score
Filing activity: Nov 2, 1964 → Aug 10, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6113918A | Aminoalkyl glucosamine phosphate compounds and their use as adjuvants and immunoeffectors | Human Necessities | 192 | Expired |
| US6303347A | Aminoalkyl glucosaminide phosphate compounds and their use as adjuvants and immunoeffectors | Chemistry; Metallurgy | 97 | Expired |
| US6649172B2 | Amphipathic aldehydes and their uses as adjuvants and immunoeffectors | Chemistry; Metallurgy | 68 | Expired |
| US6525028B1 | Immunoeffector compounds | Chemistry; Metallurgy | 66 | Expired |
| US6355257B1 | Aminoalkyl glucosamine phosphate compounds and their use as adjuvants and immunoeffectors | Human Necessities | 57 | Expired |
| US6911434B2 | Prophylactic and therapeutic treatment of infectious and other diseases with immunoeffector compounds | Human Necessities | 38 | Expired |
| US5028697A | Cytotoxic antibody conjugates of hydrazide derivatized methotrexate analogs via simple organic linkers | Human Necessities | 37 | Expired |
| US5556847A | Methods of effecting memory enhancement mediated by steroid sulfatase inhibitors | Human Necessities | 34 | Expired |
| US5338553A | Process of treating water containing effluent from cheese-making operations | Chemistry; Metallurgy | 31 | Expired |
| US6764840B2 | Aminoalkyl glucosaminide phosphate compounds and their use as adjuvants and immunoeffectors | Chemistry; Metallurgy | 30 | Expired |
| US5427899A | Two-phase acidic aqueous compositions | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6699846B2 | Mono- and disaccharides for the treatment of nitric oxide related disorders | Chemistry; Metallurgy | 24 | Expired |
| US5144012A | Cytotoxic drug conjugates | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5763492A | Methods for effecting memory enhancement mediated by non-steroidal sulfatase inhibitors | Human Necessities | 18 | Expired |
| US4322522A | Polyester/polyether segmented copolymers stabilized against degradation by UV light via copolymerization with analogs of 2,2,6,6-tetramethylpiperidine derivatives | Chemistry; Metallurgy | 15 | Expired |
| US4433135A | Method for the prevention of hydrolysis of polyesterification catalysts | Chemistry; Metallurgy | 15 | Expired |
| US8575340B2 | Purine derivatives and their pharmaceutical uses | Chemistry; Metallurgy | 13 | Active |
| US3932392A | Process for the preparation of 7-aminocephalosporanic acids | Chemistry; Metallurgy | 10 | Expired |
| US7063967B2 | Aminoalkyl glucosaminide phosphate compounds and their use as adjuvants and immunoeffectors | Chemistry; Metallurgy | 9 | Expired |
| US4262114A | Segmented thermoplastic copolyesters | Chemistry; Metallurgy | 9 | Expired |
| US7541020B2 | Aminoalkyl glucosaminide phosphate compounds and their use as adjuvants and immunoeffectors | Chemistry; Metallurgy | 8 | Expired |
| US7129219B2 | Immunoeffector compounds | Chemistry; Metallurgy | 8 | Expired |
| US5171666A | Monoclonal antibodies reactive with a cell-surface gylcoprotein expressed on human carcinomas | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8624029B2 | Lipidated imidazoquinoline derivatives | Human Necessities | 7 | Active |
| US4304568A | Minimizing ozone fading in dyed polyamides by treating same with substituted piperidine thioureas | Textiles; Paper | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.