A47L 11/02
Floor surfacing or polishing machines
Official title: Floor surfacing or polishing machines (polishing machines in general B24B29/00)
A47L11/02 (Floor surfacing or polishing machines) appears on 1,043 US grants and 916 published applications in this corpus.
Search patents in A47L- Granted patents
- 1,043
- Published applications
- 916
- Assignees
- 359
- Inventors
- 1,778
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 6 | 0 |
| 1978 | 17 | 0 |
| 1979 | 10 | 0 |
| 1980 | 20 | 0 |
| 1981 | 10 | 0 |
| 1982 | 14 | 0 |
| 1983 | 11 | 0 |
| 1984 | 10 | 0 |
| 1985 | 17 | 0 |
| 1986 | 13 | 0 |
| 1987 | 18 | 0 |
| 1988 | 19 | 0 |
| 1989 | 13 | 0 |
| 1990 | 14 | 0 |
| 1991 | 11 | 0 |
| 1992 | 16 | 0 |
| 1993 | 13 | 0 |
| 1994 | 9 | 0 |
| 1995 | 16 | 0 |
| 1996 | 15 | 0 |
| 1997 | 24 | 0 |
| 1998 | 20 | 0 |
| 1999 | 24 | 0 |
| 2000 | 22 | 0 |
| 2001 | 27 | 7 |
| 2002 | 17 | 19 |
| 2003 | 14 | 25 |
| 2004 | 13 | 27 |
| 2005 | 8 | 31 |
| 2006 | 16 | 17 |
| 2007 | 17 | 17 |
| 2008 | 8 | 20 |
| 2009 | 9 | 14 |
| 2010 | 10 | 15 |
| 2011 | 8 | 10 |
| 2012 | 21 | 18 |
| 2013 | 19 | 24 |
| 2014 | 16 | 15 |
| 2015 | 14 | 24 |
| 2016 | 20 | 31 |
| 2017 | 20 | 37 |
| 2018 | 26 | 43 |
| 2019 | 33 | 82 |
| 2020 | 51 | 62 |
| 2021 | 70 | 86 |
| 2022 | 50 | 53 |
| 2023 | 52 | 79 |
| 2024 | 68 | 76 |
| 2025 | 32 | 47 |
| 2026 | 32 | 37 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Buffer stain applicator apparatus6 Oct 2026US 12,751,593 B1
- Surface cleaning system, surface cleaning device and control method thereof22 Sep 2026US 12,740,638 B2Tineco Intelligent Technology Co., Ltd.
- Motorized suction head with steam dispensing device22 Sep 2026US 12,740,678 B2New Ermes Europe S.p.A.
- Electric burnisher22 Sep 2026US 12,740,682 B2Amano Pioneer Eclipse Corporation
- Surface cleaning apparatus8 Sep 2026US 12,727,731 B2Omachron Intellectual Property Inc.
- User-prompted cleaning by autonomous vacuum8 Oct 2026US 2026/0305895 A1Matic Robots, Inc. (fka Matician, Inc.)
- Cleaning robot24 Sep 2026US 2026/0283429 A1Beijing Roborock Technology Co., Ltd.
- Surface cleaning apparatus24 Sep 2026US 2026/0283435 A1Omachron Intellectual Property Inc.
- Cleaning pad27 Aug 2026US 2026/0248343 A1Bonakemi USA, Incorporated
- Transmission device, automatic cleaning apparatus, and cleaning robot system6 Aug 2026US 2026/0224082 A1Beijing Roborock Technology Co., Ltd.
Most cited
By later US patents
- Autonomous surface cleaning robot for wet and dry cleaning295US 7,761,954 B2iRobot Corporation · 2010
- Autonomous mobile surface treating apparatus289US 6,481,515 B1The Procter & Gamble Company · 2002
- Cleaning robot276US 5,815,880 AMinolta Co., Ltd. · 1998
- Service robot for the automatic suction of dust from floor surfaces227US 6,370,453 B22002
- Running and working robot not susceptible to damage at a coupling unit between running unit and working unit218US 5,991,951 AMinolta Co., Ltd. · 1999