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For the Inventor, By the Inventor

Bloomington, MN, United States of America

Allan L Holmstrand

This inventor holds 13 USPTO granted patents. Top assignees: Magnetic Peripherals Inc., Control Data Corporation. Active years: 1976-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Allan L Holmstrand. Retrieved from https://idiyas.com/inventor/allan-l-holmstrand

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

Calculating rank
USPTO Granted Patents = 13

% Patents Active = 100.0

Average Co-Inventor Count = 1.8

ph-index = 9

Forward Citations = 189(Granted Patents)


Company Filing History:

goldMedal10 out of 175 
 
Magnetic Peripherals Inc.
 patents
silverMedal3 out of 210 
 
Control Data Corporation
 patents

Years Active: 1976-1989

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13 patents (USPTO):Explore Patents
1. 4866886 - Textured lapping plate and process for its manufacture (1989-09-19),
2. 4850157 - Apparatus for guiding the flow of abrasive slurry over a lapping surface (1989-07-25),
3. 4821461 - Textured lapping plate and process for its manufacture (1989-04-18),
4. 4784295 - Slurry dispensing system having self-purging capabilities (1988-11-15),
5. 4559743 - Method for calibrating a machining sensor (1985-12-24),
6. 4536992 - Precision lapping system (1985-08-27),
7. 4517041 - Method for attaching a workpiece to a workpiece carrier (1985-05-14),
8. 4457114 - Workpiece carrier (1984-07-03),
9. 4297781 - Method of aligning a precision grinding wheel assembly (1981-11-03),
10. 4279102 - Method of manufacturing narrow track ferrite head cores (1981-07-21),
11. 4236355 - Precision grinding wheel mount (1980-12-02),
12. 4182643 - Method of forming gaps in magnetic heads (1980-01-08),
13. 3982318 - Magnetic transducer head core manufacturing method (1976-09-28),

Title: Innovations of Allan L Holmstrand in Lapping Technology

Introduction

Allan L Holmstrand is a prominent inventor based in Bloomington, MN, known for his significant contributions to the field of lapping technology. Over his career, he has accumulated a remarkable portfolio of 13 patents. His innovative solutions have improved industrial processes, particularly in the manufacturing of precision components.

Latest Patents

Among his latest patents, Holmstrand's innovations include a "Textured lapping plate and process for its manufacture." This invention features a selectively textured lapping plate designed to enhance its useful life and provide consistent abrading results. The technique involves propelling glass beads onto the lapping surface, creating spherical cavities that prevent workpiece hydroplaning and enhance surface machining. His second notable patent, "Apparatus for guiding the flow of abrasive slurry over a lapping surface," presents a wiper guide assembly that optimizes the application of abrasive slurry, allowing for faster material removal while maintaining the integrity of the lapping surface.

Career Highlights

Holmstrand has made significant strides in his career, working with reputable companies such as Magnetic Peripherals Inc. and Control Data Corporation. His work has had a lasting impact within the industry, particularly through his patented innovations that address key challenges in lapping processes.

Collaborations

Throughout his career, Holmstrand has collaborated with notable peers including Douglas J Hennenfent and Alan G Kracke. These collaborations have facilitated the development of groundbreaking technologies that continue to influence modern manufacturing practices.

Conclusion

Allan L Holmstrand's contributions to innovations in lapping technology underscore his role as a leading inventor in the field. With his 13 patents, he has made significant advancements that enhance the efficiency and precision of manufacturing processes. Holmstrand's remarkable career is a testament to his creativity and dedication to improving industrial practices.

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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