Inventor
Richard C. M. Cheng
Inventor
Kowloon, HK
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A63Hprimary
A63HToys, e.g. tops, dolls, hoops or building blocks36%
H01LSemiconductor devices14%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1014%
H10BElectronic memory devices9%
A61KPreparations for medical, dental or toiletry purposes5%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations5%
H01JElectric discharge tubes or discharge lamps5%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h105%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
Y10TTechnical subjects covered by former us classification5%
PatentTitleYear
11,081,348Selective deposition of silicon using deposition-treat-etch process202111,004,689Thermal silicon etch202110,886,1403D NAND etch20214,286,752'Nesting track section for model vehicles'19814,254,577'Model vehicle'19814,231,517'Track section for model vehicles'19804,219,153'Model vehicle track section'19804,203,548'Model track section'19804,185,409'Teeter-totter track section for model vehicles'19804,084,746'Model track section'19784,082,220'Model roadway track construction'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1981Patents assigned to CHENG RICHARD C M (7)· patent assignee history
1978Patents assigned to TYCO IND INC (1)· patent assignee history
1978Based in Mantua, NJ, US· patent location history
1980–1981Based in Kowloon, HK· patent location history
1981Based in La Jolla, CA, US· patent location history
2021Patents assigned to APPLIED MATERIALS INC (3)· patent assignee history
2021Based in Santa Clara, CA, US· patent location history
2021Based in San Jose, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHENG RICHARD C Mself | 7 | 1978–1981 |
| APPLIED MATERIALS INC | 3 | 2021 |
| TYCO IND INC | 1 | 1978 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kowloon, HK | 4 | 1980–1981 |
| Santa Clara, California, US | 2 | 2021 |
| Mantua, New Jersey, US | 2 | 1978 |
| San Jose, California, US | 1 | 2021 |
| La Jolla, California, US | 1 | 1981 |