David A. Perry
23Patents
7h-index
24Co-inventors
69Inventor score
Filing activity: Jun 10, 1977 → Jun 6, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4225575A | Method and apparatus for performing in vitro clinical diagnostic tests using a solid phase assay system | Emerging Cross-Sectional Technologies | 53 | Expired |
| US4197287A | Method and apparatus for performing in nitro clinical diagnostic tests using a solid phase assay system having special utility for use with automatic pipetting equipment | Emerging Cross-Sectional Technologies | 42 | Expired |
| US4305924A | Method and apparatus for performing in vitro clinical diagnostic tests using a solid phase assay system | Emerging Cross-Sectional Technologies | 41 | Expired |
| US5981500A | Antiparasitic agents related to the milbemycins and avermectins | Chemistry; Metallurgy | 26 | Expired |
| US8383660B2 | Dibenzyl amine compounds and derivatives | Chemistry; Metallurgy | 18 | Active |
| US5573946A | Biologically pure culture of Streptomyces hygroscopicus ATCC 53718 capable of producing antibiotic compounds | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6502267B2 | Conveyor crossover | Performing Operations; Transporting | 10 | Expired |
| US6699904B2 | PPAR agonists | Chemistry; Metallurgy | 7 | Expired |
| US8323159B2 | System and apparatus for storage and use of dumbbells | Human Necessities | 7 | Active |
| US4678532A | Treatment of wood veneers in plywood manufacturing | Performing Operations; Transporting | 6 | Expired |
| US4425320A | Method and apparatus for carrying out solid phase in vitro diagnostic assays | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5073567A | Antiparasitic agent | Human Necessities | 5 | Expired |
| US6979741B2 | Acetyl-CoA carboxylase inhibitors | Chemistry; Metallurgy | 4 | Expired |
| US4929638A | C.25 [substituted(2-propenyl)]milbemycins | Emerging Cross-Sectional Technologies | 4 | Expired |
| US11796463B1 | Method and apparatus for detecting chemical compounds in soil | Physics | 1 | Active |
| US7837601B2 | Method to prepare for and conduct an exercise using free weights | Human Necessities | 1 | Active |
| US4927847A | Novel C.25 (substituted (2-propenyl))-milbemycins | Emerging Cross-Sectional Technologies | 1 | Expired |
| US12007312B2 | Method and apparatus for detecting chemical compounds in soil | Physics | 1 | Active |
| US7919506B2 | Dibenzyl amine compounds and derivatives | Chemistry; Metallurgy | 0 | Active |
| US12241829B2 | Method and apparatus for detecting chemical compounds in soil | Physics | 0 | Active |
| US5026643A | Fermentation process for the preparation of novel C.25 (substituted(2-propenyl) milbemycins | Emerging Cross-Sectional Technologies | 0 | Expired |
| US11221292B2 | Method utilizing in-situ, subsurface, near-infrared spectroscopy to detect buried human remains | Physics | 0 | Active |
| US5589366A | Process for producing antiparasitic macrolide antibiotics | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.