Inventor
Ralph H. Carmen
Inventor
Lebanon, NJ, US
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G07Dprimary
G07DHandling of coins or valuable papers, e.g. testing, sorting by denominations, counting, dispensing, changing or depositing20%
G07FCoin-freed or like apparatus20%
G01DMeasuring not specially adapted for a specific variable7%
G01SRadio direction-finding7%
G07BTicket-issuing apparatus7%
G01RMeasuring electric variables3%
G02BOptical elements, systems or apparatus3%
G07CTime or attendance registers3%
G09FDisplaying3%
G11BInformation storage based on relative movement between record carrier and transducer3%
PatentTitleYear
6,230,868'System for metering multiple parking spaces'20015,841,369'Parking meter with peripheral functions'19985,806,651'Coin discrimination system'19985,805,083'Electronic parking meter operating system'19985,382,780'Portable time metering device'19955,273,151'Resonant coil coin detection apparatus'19935,244,070'Dual coil coin sensing apparatus'19935,184,707'Coin operated timing mechanism'19935,155,614'Low-power demodulating receiver with amplifier stages sharing the same bias current'19925,139,128'Chute for controlling the motion of a token moving by gravity through a token-receiving device'19925,119,916'Sensor for measuring the magnetically responsive characteristics of tokens'19925,109,972'Coin operated timing mechanism'19925,060,777'Low-power device for sorting tokens'19915,018,131'Optical switch'19914,904,995'Integrated remote electricity meter transponder and combination'19904,866,382'Magnetic rotary encoder system having a multi-element magnetoresistive sensor'19894,853,631'Magnetoresistive sensor having inter-leaved magnetoresistive elements for detecting encoded magnetic information'19894,734,779'Video projection system'19884,412,249'Ultrasonic image storage device and method'19834,412,248'Ultrasonic image storage device and method'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983Patents assigned to TECHNICARE CORP (2)· patent assignee history
1983–1993Based in Lebanon, NJ, US· patent location history
1989Patents assigned to SUPERIOR ELECTRIC CO (2)· patent assignee history
1991–1992Patents assigned to DUNCAN IND PARKING CONTROL COR (2)· patent assignee history
1991Patents assigned to DSC COMMUNICATIONS (1)· patent assignee history
1992–1998Patents assigned to DUNCAN IND PARKING CONTROL SYS (9)· patent assignee history
1995–1998Based in Merritt Island, FL, US· patent location history
2001Based in Meritt Island, FL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DUNCAN IND PARKING CONTROL SYS | 9 | 1992–1998 |
| DUNCAN IND PARKING CONTROL COR | 2 | 1991–1992 |
| SUPERIOR ELECTRIC CO | 2 | 1989 |
| TECHNICARE CORP | 2 | 1983 |
| DSC COMMUNICATIONS | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lebanon, New Jersey, US | 15 | 1983–1993 |
| Merritt Island, Florida, US | 4 | 1995–1998 |
| Meritt Island, Florida, US | 1 | 2001 |