John A. Langan
11Patents
7h-index
13Co-inventors
59Inventor score
Filing activity: Aug 27, 1987 → Mar 2, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5151986A | Microcomputer with on-board chip selects and programmable bus stretching | Physics | 60 | Expired |
| US5761489A | Method and apparatus for scan testing with extended test vector storage in a multi-purpose memory system | Physics | 37 | Expired |
| US5778444A | Method and apparatus for reset-sensitive and controlled register write accesses in a data processing system with user and test modes | Physics | 33 | Expired |
| US5293628A | Data processing system which generates a waveform with improved pulse width resolution | Physics | 31 | Expired |
| US5619687A | Queue system having a time-out feature and method therefor | Physics | 29 | Expired |
| US5233573A | Digital data processor including apparatus for collecting time-related information | Physics | 10 | Expired |
| US6230238A | Method and apparatus for accessing misaligned data from memory in an efficient manner | Physics | 7 | Expired |
| US5301335A | Register with selective wait feature | Physics | 4 | Expired |
| US6058463A | Paged memory data processing system with overlaid memory control registers | Physics | 4 | Expired |
| US5386534A | Data processing system for generating symmetrical range of addresses of instructing-address-value with the use of inverting sign value | Physics | 3 | Expired |
| US5640548A | Method and apparatus for unstacking registers in a data processing system | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.