PSC, INC.
🏢 View company profile →115Patents
0Active
115Granted
42Portfolio score
Filing activity: May 11, 1988 → Feb 11, 2003
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5883370A | Automated method for filling drug prescriptions | Physics | 289 | Expired |
| US6230975A | Optical reader with adaptive exposure control | Electricity | 192 | Expired |
| US5208449A | Portable transaction terminal | Electricity | 184 | Expired |
| US5699161A | Method and apparatus for measuring dimensions of objects on a conveyor | Physics | 173 | Expired |
| US5231293A | Bar code reading instrument which prompts operator to scan bar codes properly | Physics | 170 | Expired |
| US6137577A | Method and apparatus for measuring dimensions of objects on a conveyor | Physics | 146 | Expired |
| US5233169A | Uniport interface for a bar code reading instrument | Physics | 145 | Expired |
| US5991041A | Method and apparatus for measuring dimensions of objects on a conveyor | Physics | 143 | Expired |
| US5923428A | Method and apparatus for measuring dimensions of objects on a conveyor | Physics | 143 | Expired |
| US5200597A | Digitally controlled system for scanning and reading bar codes | Physics | 141 | Expired |
| US6155488A | Optical reader with adaptive exposure control | Electricity | 123 | Expired |
| US6276605A | Optical reader with condensed CMOS circuitry | Electricity | 114 | Expired |
| US5237161A | System for automatically reading symbols, such as bar codes, on objects which are placed in the detection zone of a symbol reading unit, such as a bar code scanner | Physics | 99 | Expired |
| US5984186A | CCD-base bar code scanner | Physics | 91 | Expired |
| US5258604A | Bar code scanner | Physics | 84 | Expired |
| US6311895A | Optical reader with condensed CMOS circuitry | Electricity | 83 | Expired |
| US6152368A | Optical reader with addressable pixels | Electricity | 75 | Expired |
| US5389917A | Lapel data entry terminal | Physics | 68 | Expired |
| US5260554A | System for automatically reading symbols, such as bar codes, on objects which are placed in the detection zone of a symbol reading unit, such as a bar code scanner | Physics | 68 | Expired |
| US6041374A | PCMCIA interface card for coupling input devices such as barcode scanning engines to personal digital assistants and palmtop computers | Physics | 66 | Expired |
| US5422472A | Optical symbol (bar code) reading systems having an electro-optic receptor with embedded grating rings | Physics | 65 | Expired |
| US5602376A | Hand-mounted optical scanner system | Physics | 65 | Expired |
| US5557095A | System for enabling decoding of bar code and other symbols with a digital microcomputer connected via the input/output port thereof to the scanner | Physics | 63 | Expired |
| US6296187A | CCD-based bar code scanner | Physics | 63 | Expired |
| US5852286A | Method and apparatus for reducing bandwidth limited noise in bar code scanner | Physics | 60 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.