David T. Frederick
24Patents
18h-index
14Co-inventors
78Inventor score
Filing activity: Jun 21, 1989 → May 2, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6112502A | Restocking method for medical item dispensing system | Physics | 258 | Expired |
| US6788997B1 | Medical cabinet with adjustable drawers | Emerging Cross-Sectional Technologies | 150 | Expired |
| US6658322B1 | System and method for tracking medical items and supplies | Physics | 82 | Expired |
| US7262698B1 | Medical item storage cabinet and method | Physics | 73 | Expired |
| US7689316B1 | Medical item storage cabinet and method | Physics | 57 | Active |
| US7263410B1 | Medical item storage cabinet and method | Physics | 55 | Expired |
| US6963791B1 | System and method for tracking medical items and supplies | Physics | 48 | Expired |
| US7258249B1 | Medical item storage cabinet and method | Physics | 48 | Expired |
| US7286900B1 | Medical item storage cabinet and method | Physics | 47 | Expired |
| US7463947B1 | Medical item storage cabinet and method | Physics | 46 | Expired |
| US7596427B1 | Medical item storage cabinet and method | Physics | 44 | Active |
| US6019249A | Apparatus for dispensing medical items | Physics | 42 | Expired |
| US6902083B1 | Method for dispensing medical items | Physics | 42 | Expired |
| US8423180B1 | System for tracking and dispensing medical items from environmentally controlled storage area | Physics | 33 | Expired |
| US7515988B1 | Medical item storage cabinet and method | Physics | 30 | Active |
| US7048142B1 | Apparatus for dispensing medical items | Physics | 28 | Expired |
| US9430784B1 | System for E-commerce accessibility | Physics | 24 | Active |
| US6776306B1 | Apparatus for dispensing medical items | Physics | 24 | Expired |
| US6141942A | Apparatus and method for loading medical items in a dispenser module | Physics | 8 | Expired |
| US4972268A | Dual focus range apparatus for TV camera | Electricity | 4 | Expired |
| US8919336B2 | Radiant gas burner unit | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US10311506B1 | System and method for e-commerce accessibility | Physics | 4 | Active |
| US4974091A | Focus locking apparatus for TV camera | Electricity | 1 | Expired |
| US11023960B1 | System and method for e-commerce accessibility | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.