A47B 31/00
Service or tea tables, trolleys, or wagons
Official title: Service or tea tables, trolleys, or wagons ({serving trays A47G23/06}; features relating to running gear or to movement by hand B62B)
A47B31/00 (Service or tea tables, trolleys, or wagons) appears on 652 US grants and 530 published applications in this corpus.
Search patents in A47B- Granted patents
- 652
- Published applications
- 530
- Assignees
- 341
- Inventors
- 1,254
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 9 | 0 |
| 1978 | 11 | 0 |
| 1979 | 7 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 7 | 0 |
| 1987 | 5 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 10 | 0 |
| 1991 | 13 | 0 |
| 1992 | 12 | 0 |
| 1993 | 17 | 0 |
| 1994 | 14 | 0 |
| 1995 | 11 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 15 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 6 | 5 |
| 2002 | 8 | 4 |
| 2003 | 11 | 5 |
| 2004 | 4 | 5 |
| 2005 | 3 | 10 |
| 2006 | 4 | 12 |
| 2007 | 6 | 8 |
| 2008 | 6 | 18 |
| 2009 | 1 | 5 |
| 2010 | 6 | 9 |
| 2011 | 6 | 17 |
| 2012 | 6 | 11 |
| 2013 | 7 | 11 |
| 2014 | 10 | 18 |
| 2015 | 22 | 32 |
| 2016 | 23 | 32 |
| 2017 | 27 | 27 |
| 2018 | 38 | 50 |
| 2019 | 38 | 37 |
| 2020 | 38 | 44 |
| 2021 | 31 | 38 |
| 2022 | 33 | 34 |
| 2023 | 39 | 33 |
| 2024 | 27 | 19 |
| 2025 | 23 | 32 |
| 2026 | 15 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A47B 31/02Service or tea tables, trolleys, or wagons: with heating, cooling or ventilating166
- A47B 2031/003Service or tea tables, trolleys, or wagons: with drawers, trays or shelvesIndexing code138
- A47B 2031/002Catering trolleysIndexing code118
- A47B 31/06Service or tea tables, trolleys, or wagons: adapted to the use in110
- A47B 2031/004Service or tea tables, trolleys, or wagons: having four vertical uprightsIndexing code78
- A47B 31/04Foldable64
- A47B 2031/006Medication cartsIndexing code63
- A47B 2031/008Outdoor serving cartsIndexing code24
Recent patents
- System for cooling an aircraft galley trolley8 Sep 2026US 12,728,994 B2B/E Aerospace (UK) Limited
- Breast pump drawer systems25 Aug 2026US 12,714,224 B2Restful Pump, Inc.
- Food pan cooling system with one or more perforated food pans18 Aug 2026US 12,708,199 B2Illinois Tool Works Inc.
- Postal service cart including a mobile customer service terminal4 Aug 2026US 12,696,974 B2United States Postal Service
- Convertible bar and table assembly16 Jun 2026US 12,653,306 B2
- Networked sample randomizer system for structured blind tasting data collection and analysis1 Oct 2026US 2026/0294096 A1Libation Aficionado LLC
- Sample randomizer for blind testing6 Aug 2026US 2026/0224023 A1Libation Aficionado LLC
- Compact cooking table and compact cooking table with a vapor extractor6 Aug 2026US 2026/0224024 A1MEC2 GmbH
- Mobile vapor extractor for a cooking table and cooking table for the vapor extractor6 Aug 2026US 2026/0227077 A1MEC2 GmbH
- Method, system, and non-transitory computer-readable recording medium for controlling a serving robot6 Aug 2026US 2026/0227784 A1Bear Robotics, Inc.
Most cited
By later US patents
- Portable nursing center241US 5,314,243 AAutomated Healthcare, Inc. · 1994
- Portable nursing center212US 5,564,803 AAutomated Healthcare, Inc. · 1996
- Workroom storage system162US 7,228,977 B2Whirlpool Corporation · 2007
- Patient medication dispensing and associated record160US 5,292,029 A1994
- Semi-automated medication dispenser134US 5,562,232 A1996