F04C 2270/0421
Controlled or regulated
F04C2270/0421 (Controlled or regulated) appears on 780 US grants and 1,015 published applications in this corpus.
Search patents in F04C- Granted patents
- 780
- Published applications
- 1,015
- Assignees
- 393
- Inventors
- 1,437
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2011 | 0 | 1 |
| 2012 | 0 | 55 |
| 2013 | 21 | 169 |
| 2014 | 45 | 228 |
| 2015 | 89 | 198 |
| 2016 | 120 | 62 |
| 2017 | 114 | 45 |
| 2018 | 113 | 60 |
| 2019 | 74 | 39 |
| 2020 | 51 | 42 |
| 2021 | 40 | 30 |
| 2022 | 26 | 15 |
| 2023 | 31 | 20 |
| 2024 | 28 | 22 |
| 2025 | 21 | 18 |
| 2026 | 7 | 11 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Methods and systems for adjusting an external fixation frame25 Aug 2026US 12,714,467 B2Stryker European Operations Holdings LLC
- Autoinjector7 Jul 2026US 12,673,168 B2Sanofi-Aventis Deutschland GmbH
- Devices for urethral treatment7 Jul 2026US 12,673,192 B2ProArc Medical Ltd.
- High density epidural stimulation for facilitation of locomotion, posture, voluntary movement, and recovery of autonomic, sexual, vasomotor, and cognitive function after neurological injury9 Jun 2026US 12,649,062 B2California Institute of Technology
- Electronic cigarette21 Apr 2026US 12,605,516 B2Altria Client Services LLC
- Surgical instrument24 Sep 2026US 2026/0283636 A1Livsmed Inc.
- Electronic cigarette27 Aug 2026US 2026/0249028 A1Altria Client Services LLC
- Impeller for catheter pump16 Jul 2026US 2026/0199658 A1Tc1 LLC
- High density epidural stimulation for facilitation of locomotion, posture, voluntary movement, and recovery of autonomic, sexual, vasomotor, and cognitive function after neurological injury16 Jul 2026US 2026/0199682 A1California Institute of Technology
- Basket Style Cardiac Mapping Catheter Having a Flexible Electrode Assembly for Detection of Cardiac Rhythm Disorders7 May 2026US 2026/0123868 A1Topera, Inc.
Most cited
By later US patents
- Surgical instrument having a multiple rate directional switching mechanism1,717US 8,534,528 B2Ethicon Endo-Surgery, Inc. · 2013
- Tissue thickness compensator comprising a plurality of medicaments1,690US 9,211,120 B2Ethicon Endo-Surgery, Inc. · 2015
- Tissue thickness compensator comprising structure to produce a resilient load1,522US 9,220,500 B2Ethicon Endo-Surgery, Inc. · 2015
- Modular tool heads for use with circular surgical instruments1,503US 8,827,903 B2Ethicon Endo-Surgery, Inc. · 2014
- Trans-rectum universal ports1,500US 8,632,462 B2Ethicon Endo-Surgery, Inc. · 2014