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For the Inventor, By the Inventor

Los Gatos, CA, United States of America

Keith E Diefendorff

This inventor holds 51 USPTO granted patents and 2 published patent applications, primarily in Vector Processing (CPC class G06F). Top assignees: Apple Inc., Mips Technologies, Inc., International Business Machines Corporation. Active years: 1986-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keith E Diefendorff. Retrieved from https://idiyas.com/inventor/keith-e-diefendorff

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 51 

% Patents Active = 78.4

Average Co-Inventor Count = 1.8

ph-index = 18

Forward Citations = 1,716(Granted Patents)

Forward Citations (Not Self Cited) = 1,663(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Austin, TX (US) (1986 - 1994)
  • Los Gatos, CA (US) (1999 - 2015)

Company Filing History:

goldMedal30 out of 43,562 
 
Apple Inc.
 patents
silverMedal10 out of 271 
 
Mips Technologies, Inc.
 patents
bronzeMedal4 out of 166,351 
 
International Business Machines Corporation
 patents
4. 4 out of 20,290 
 
Motorola Corporation
 patents
5. 4 out of 29,888 
 
Texas Instruments Corporation
 patents
6. 1 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1986-2015

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Areas of Expertise:
Predicate Values
Data Dependency
Faulting Instructions
Memory Hazard Detection
Peer-to-Peer Communication
Microprocessor
Vector Processors
Data Stream Prefetching
Incremental Values
Processing Vectors
Conditional Data
Alignment Control
51 patents (USPTO):Explore Patents
1. 8984262 - Generate predicates instruction for processing vectors (2015-03-17),
2. 8976799 - Converged computer I/O system and bridging mechanism for peer-to-peer communication (2015-03-10),
3. 8959316 - Actual instruction and actual-fault instructions for processing vectors (2015-02-17),
4. 8793472 - Vector index instruction for generating a result vector with incremental values based on a start value and an increment value (2014-07-29),
5. 8762690 - Increment-propagate and decrement-propagate instructions for processing vectors (2014-06-24),
6. 8745360 - Generating predicate values based on conditional data dependency in vector processors (2014-06-03),
7. 8650383 - Vector processing with predicate vector for setting element values based on key element position by executing remaining instruction (2014-02-11),
8. 8578209 - Non-faulting and first faulting instructions for processing vectors (2013-11-05),
9. 8463881 - Bridging mechanism for peer-to-peer communication (2013-06-11),
10. 8447956 - Running subtract and running divide instructions for processing vectors (2013-05-21),
11. 8417921 - Running-min and running-max instructions for processing vectors using a base value from a key element of an input vector (2013-04-09),
12. 8402255 - Memory-hazard detection and avoidance instructions for vector processing (2013-03-19),
13. 8370608 - Copy-propagate, propagate-post, and propagate-prior instructions for processing vectors (2013-02-05),
14. 8364938 - Running-AND, running-OR, running-XOR, and running-multiply instructions for processing vectors using a base value from a key element of an input vector (2013-01-29),
15. 8359461 - Running-shift instructions for processing vectors using a base value from a key element of an input vector (2013-01-22),

Title: Inventor Keith E Diefendorff - Revolutionizing Technology

Introduction: Keith E Diefendorff, a visionary inventor based in Los Gatos, CA, has made significant contributions to the world of technology through his innovative creations.

Latest Patents: Keith E Diefendorff holds several patents in the field of electronics and semiconductor technology, with his most recent patent focusing on advanced microprocessor design for enhanced performance.

Career Highlights: With a career spanning over two decades, Keith E Diefendorff has worked for leading tech companies, where he played a key role in developing cutting-edge technologies that have shaped the industry.

Collaborations: Throughout his career, Keith E Diefendorff has collaborated with top engineers, researchers, and scientists to bring his ideas to life, leading to groundbreaking innovations in the tech sector.

Conclusion: Keith E Diefendorff's passion for pushing the boundaries of technology and his relentless pursuit of innovation continue to inspire the next generation of inventors and shape the future of the tech industry.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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