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USPTO Patent Rankings Data through Dec 31, 2025
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Robert Schaefer — 20 Patents

ABAbiomed: 5 patents #35 of 134Top 30%
TCThe Gillette Company: 5 patents #321 of 1,479Top 25%
VMVycor Medical: 4 patents #3 of 8Top 40%
AMApple Medical: 3 patents #1 of 4Top 25%
TBThe Braun: 1 patents #526 of 867Top 65%
Danvers, MA: #20 of 334 inventorsTop 6%
Massachusetts: #5,700 of 88,656 inventorsTop 7%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Robert Schaefer has been granted 20 US patents while listed as an inventor at Abiomed. The first was granted in 1993 and the most recent in August 2025. Robert Schaefer ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Robert Schaefer in Danvers, MA, US.

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
D1090829 Medical device housing Christopher Theodore Bazdanes, Vincent Roy 2025-08-26
D1035868 Medical device housing Christopher Theodore Bazdanes, Vincent Roy 2024-07-16
D995764 Medical device housing Christopher Theodore Bazdanes, Vincent Roy 2023-08-15
D994879 Medical device housing Christopher Theodore Bazdanes, Vincent Roy 2023-08-08
D994880 Medical device housing Christopher Theodore Bazdanes, Vincent Roy 2023-08-08
11648692 Personal care product docking system Christoph Zegula, Matthias Paschold, Christian Litterst, Judith Von Dahlen 2023-05-16
11648693 Personal care product docking system Christoph Zegula, Matthias Paschold, Christian Litterst, Judith Von Dahlen 2023-05-16
11517347 Surgical introducer with guidance system receptacle David Cantor 2022-12-06
11476708 Personal care product docking system with flux guiding members Klaus Heubach, Jian Jim Wang, Norbert Broemse 2022-10-18
11045182 Surgical introducer with guidance system receptacle David Cantor 2021-06-29
11025093 Personal care product system with flux guiding members Klaus Heubach, Jian Jim Wang, Norbert Broemse 2021-06-01
10688674 Personal care product handle Christoph Zegula, Matthias Paschold, Christian Litterst, Judith Von Dahlen 2020-06-23
10543016 Surgical introducer with guidance system receptacle David Cantor 2020-01-28
10376258 Surgical introducer with guidance system receptacle David Cantor 2019-08-13
10035273 Electric appliance for personal care Martin Ring, Bernhard Kraus 2018-07-31
D445495 Uterine sampler John C. Pulford 2001-07-24
5908379 Urethral cap Sergei Bogojavlensky, Robert Schlesinger 1999-06-01
D396284 Female incontinence device — 1998-07-21
5437646 Cannula reducer Robert B. Hunt 1995-08-01
5273545 Endoscopic cannula with tricuspid leaf valve Robert B. Hunt 1993-12-28

Nearby-Ranked Inventors

Anthony Mertes20
Ed Merjanian20
Arthur J. Higby20
Daniel Rosenberg20
Anthony J. Kuschel20
Mark E. Fauver20
Markus Wintermantel20
Dominik Schnieders20
Christopher P. Roche20