Inventor · Portland, OR, US

Derek T. Bachand

30Patents
10h-index
23Co-inventors
75Inventor score

Filing activity: Dec 29, 1997 → Sep 18, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US6499090B1 Prioritized bus request scheduling mechanism for processing devices Physics 66 Expired
US6321297A Avoiding tag compares during writes in multi-level cache hierarchy Physics 54 Expired
US6732242B2 External bus transaction scheduling system Physics 49 Expired
US7487305B2 Prioritized bus request scheduling mechanism for processing devices Physics 48 Active
US6668309B2 Snoop blocking for cache coherency Physics 27 Expired
US6216208A Prefetch queue responsive to read request sequences Physics 25 Expired
US6078981A Transaction stall technique to prevent livelock in multiple-processor systems Physics 22 Expired
US6782457B2 Prioritized bus request scheduling mechanism for processing devices Physics 20 Expired
US6606692B2 Prioritized bus request scheduling mechanism for processing devices Physics 19 Expired
US6378048B1 “SLIME” cache coherency system for agents with multi-layer caches Physics 15 Expired
US6209068A Read line buffer and signaling protocol for processor Physics 10 Expired
US6578116B2 Snoop blocking for cache coherency Physics 8 Expired
US6434677B1 Method and apparatus for altering data length to zero to maintain cache coherency Physics 7 Expired
US6460119B1 Snoop blocking for cache coherency Physics 7 Expired
US6578114B2 Method and apparatus for altering data length to zero to maintain cache coherency Physics 6 Expired
US6654837B1 Dynamic priority external transaction system Physics 5 Expired
US6735675B2 Method and apparatus for altering data length to zero to maintain cache coherency Physics 5 Expired
US8205111B2 Communicating via an in-die interconnect Physics 4 Active
US7133981B2 Prioritized bus request scheduling mechanism for processing devices Physics 4 Expired
US7143242B2 Dynamic priority external transaction system Physics 4 Expired
US6401172B1 Recycle mechanism for a processing agent Physics 3 Expired
US6412091B2 Error correction system in a processing agent having minimal delay Electricity 2 Expired
US6269465A Error correction system in a processing agent having minimal delay Electricity 2 Expired
US7555603B1 Transaction manager and cache for processing agent Physics 1 Expired
US11372757B2 Tracking repeated reads to guide dynamic selection of cache coherence protocols in processor-based devices Physics 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.