Machine Tools

Citations to U.S. patents by U.S. patents granted in 2021

Top 10   [Cited by Examiner | Cited by Applicant]

Related WIPO fields:[Other special machines | Materials, metallurgy | Mechanical elements | Electrical machinery, apparatus, energy | Handling | Surface technology, coating | Semiconductors All WIPO fields

[Cited by Examiner | Cited by Applicant]
Most Cited by Examiners

  1. 6 5224267    Safety razors
  Inventors: Graham John Simms; Brian Oldroyd

  1. 6 5720423    Fastener driving tool
  Inventors: Masayoshi Kondo; Akira Mizumoto; Jiro Oda

  3. 5 10363635    Systems for removing items from a container
  Inventors: Ennio Claretti; Andrew D. Marchese; Andrew Stubbs; Ying Xu

  3. 5 4215808    Portable electric fastener driving apparatus
  Inventors: Roger W. Sollberger; Walter J. Webb

  3. 5 4465422    Methods and apparatus for threading a pipe
  Inventors: Donald L. Blust, Sr.; Jerome J. Pope; Lawrence L. Troxell, Jr.

  3. 5 5369885    Insert molded dynamic shaving system
  Inventors: Frank A. Ferraro

  3. 5 6161287    Razor blade system
  Inventors: Gerald T. Swanson; Paul A. Flaherty; Matthew J. Guay; Stephen C. Metcalf

  3. 5 6458022    Self-centering steady rest clamping device
  Inventors: Peter Folz

  3. 5 8336709    Magnetic tool holder
  Inventors: Ronald J. Geibel

  10. 4 10654601    Method of managing a set of lids, stacked and inserted in a package, transport device for transporting a set of stacked lids and inserted in a package, and system for producing palletized set of lids
  Inventors: Bruno Leonardo Giublin; Guilherme Kisseloff Coracini; Tales Gustavo Vieira

  10. 4 3657812    Retractible tool holder
  Inventors: Dennis D. Lee

  10. 4 4247216    Quick connect handle for swimming pool cleaning tools
  Inventors: Andrew L. Pansini

  10. 4 4475286    Safety razor
  Inventors: Tatsuya Saito

  10. 4 4932581    Method of and device for metering a solder material in a soldering device
  Inventors: Eckhard Ohle; Wilfried Reschnar

  10. 4 5257923    Porous film manufacturing apparatus
  Inventors: Seiji Kagawa

  10. 4 5416974    Safety razors and blade units therefor
  Inventors: Kevin James Wain

  10. 4 5452971    Rotary end cutting tool
  Inventors: Alva D. Nevills

  10. 4 5601483    Power tool
  Inventors: Boris Rudolf; Walter Blutharsch; Andreas Peisert; Thomas Nicolas Emmanuel Veit

  10. 4 5655289    Blind-rivet setting device
  Inventors: Lothar Wille; Hubertus KLEIN

  10. 4 5782821    Battery boot for a portable surgical tool
  Inventors: Victor Couch

  10. 4 5837960    Laser production of articles from powders
  Inventors: Gary K. Lewis; John O. Milewski; David A. Cremers; Ronald B. Nemec; Michael R. Barbe

  10. 4 5902499    Method and apparatus for machining material with a liquid-guided laser beam
  Inventors: Bernold Richerzhagen

  10. 4 5910894    Sensor based assembly tooling improvements
  Inventors: Timothy R. Pryor

  10. 4 5914882    Device for and method of preventing accidents in hand-operated machine tools due to tool jamming
  Inventors: Vaheh Khachatouri Yeghiazarians

  10. 4 5974925    Continuous feed for food loaf slicing machine
  Inventors: Scott A. Lindee; David M. Hansen

  10. 4 6030326    Automatic blade changing system
  Inventors: Masayuki Azuma; Tadashi Adachi

  10. 4 6035537    Razor cartridge with metal clip retaining blades
  Inventors: Domenic Vincent Apprille, Jr.; Katherine Elizabeth Anderson

  10. 4 6130407    Arc welding torch
  Inventors: Julio Villafuerte

  10. 4 6325273    Friction welding apparatus and method
  Inventors: Terence Boon; Wayne M. Thomas; Peter Temple-Smith

  10. 4 6382610    Chain slip tool for chain vise
  Inventors: Ronnie L. Corbin

  10. 4 6583386    Method and system for weld monitoring and tracking
  Inventors: Stephen P. Ivkovich

  10. 4 6643936    Hand-held rotary cutter
  Inventors: Christopher R. Carlson; William J. Schulz

  10. 4 6814823    Object consolidation through sequential material deposition
  Inventors: Dawn White

  10. 4 7234242    Adjustable apparatus for hair clipper
  Inventors: Woody YAO

  10. 4 7263917    Open-ended spin tool
  Inventors: Susan Ann Hodapp Benysh; Scott Christopherson; Edward C. Gillard; Don A. Gilliland

  10. 4 7416102    Method of friction stir welding and multi-section faced shoulderless retractable variable penetration friction stir welding tool for same
  Inventors: Timothy J. Trapp; James Fisher; Jeffrey J. Bernath

  10. 4 7431747    Cutting tool and method of reducing the width of wear mark on a cutting tool
  Inventors: Hans-Wilm Heinrich; Gunter Röder; Günther Häupl

  10. 4 8042717    Fastener driving device with contact trip having an electrical actuator
  Inventors: Lok C. Lam; Keven E. Miller; David M. McGee

  10. 4 8307556    Utility cutter
  Inventors: Raymond E. Davis; Clifton Glenn Hampton

  10. 4 8336212    Razor blade unit
  Inventors: Ioannis Bozikis; Dimitris Efthimiadis; Spiros Gratsias

  10. 4 8495935    Multi-scale mechanism
  Inventors: Bradley G. Mountz; Daniel K. Ohlendorf; Yi-Min Wu

  10. 4 8590162    Shaver
  Inventors: Young Ho Park; Byung Sun An

  10. 4 8745883    Razor handle with a rotatable portion
  Inventors: Matthew Frank Murgida; Robert Harold Johnson; Paul Fathallah

  10. 4 8919456    Fastener setting algorithm for drill driver
  Inventors: Wong Kun Ng; Christopher W. Shook

  10. 4 9539734    Shaving razors and shaving cartridges
  Inventors: Ioannis Bozikis; Spiros Gratsias; Christoforos-Athanasios Brellis

  10. 4 9555554    Oscillating multi-tool system
  Inventors: Troy C. Thorson; Jeffrey M. Wackwitz; Emily C. Doberstein; James Wekwert

[Cited by Examiner | Cited by Applicant]
Most Cited by Applicants

  1. 33 6583386    Method and system for weld monitoring and tracking
  Inventors: Stephen P. Ivkovich

  2. 32 6624388    System and method providing distributed welding architecture
  Inventors: George D. Blankenship; Christopher Hsu; Edward Hillen

  3. 25 6242711    Arc welding monitoring system
  Inventors: Edward L. Cooper

  4. 23 5708253    Apparatus and method for computerized interactive control, measurement and documentation of arc welding
  Inventors: Christopher J. Bloch; Don E. Harrison; John Hill

  4. 23 6441342    Monitor for electric arc welder
  Inventors: Christopher Hsu

  6. 21 6536536    Power tools
  Inventors: Stephen F. Gass; David S. D'Ascenzo

  7. 20 6750428    Automatic welding device and welding skill training device
  Inventors: Takeshi Okamoto; Shinji Okumura; Hiroyuki Handa

  7. 20 8274013    System for tracking and analyzing welding activity
  Inventors: Matthew Wayne Wallace

  9. 19 6123241    Internal combustion powered tool
  Inventors: Tony Walter; J. Oscar Aparicio, Jr.

  9. 19 6271500    Arc welding monitoring device
  Inventors: Takahide Hirayama; Shinji Okumura; Keiichi Takaoka; Noriyuki Ohsawa

  9. 19 6734393    Data display on a welding screen
  Inventors: Helmut Friedl; Franz Niedereder; Heinrich Hackl

 
 
References:
Raw data from: U.S. Patent and Trademark Office. "Data Download Tables." PatentsView. Accessed October 30, 2025. https://patentsview.org/download/data-download-tables.

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Published: February 18, 2026