| Trademark / Brand Name |
Class(es) |
| A O BACTIN |
5 |
| A M O CO |
1 |
| A&O |
16, 36, 42 |
| A&O AWCHAT & OLSEN DESIGN |
35 |
| A-FLU-O-CIL |
5 |
| A.O. SAFAI detergent cake |
3 |
| A.O. SMITH |
7, 11, 17 |
| A.O. SMITH POWER OF 1 HOUR |
37 |
| A.O. laundry soap |
3 |
| A.O.C. ACETROL |
4 |
| A.O.C. APOLO EXCEL |
4 |
| A.O.C. PRODUCT RED HORSE |
4 |
| A.O.C.D. ANY ONE CAN DANCE |
41 |
| A.A.R.O |
12 |
| A.C.C.O |
9 |
| A.C.R.O. |
12 |
| A.D.C.O |
9 |
| A.E.O.M. COUTURE |
25 |
| A.E.I.O.U. |
25 |
| A.G.N.O. salt |
5 |
| A.J.O. nice +oval |
19 |
| A.N.C.O |
12 |
| A.N.C.H.O.R +arcs & square |
7 |
| A.N.C.H.O.R +triangle squar |
7 |
| A.P.O. |
7 |
| A.S.S.O |
12 |
| A.X.O |
11 |
| AARAL-GAS O FIT |
5 |
| AARCHIELYTE O.R.S. |
5 |
| ABC LETTER-O-HOLIC +circles |
6, 20 |
| AC CERAMIC R.O.K. QUALITY |
11 |
| AC V.S.O.P |
33 |
| ACCESS-O-RISINGG +arcs |
35 |
| ACD-O-CARE |
5 |
| ACE-O-PRIL |
5 |
| ACESS-O |
5 |
| ACID-O-NORM |
5 |
| ACILFATE-O suspension +oval |
5 |
| ACINIL-O |
5 |
| ACIPROHIB-O +arcs & arrows |
5 |
| ACT-O-MATIC |
11 |
| ADDICAL-O |
5 |
| ADVEN GAS-O-PLUS +squares |
5 |
| AEGACID-O |
5 |
| AEGIDOM-O |
5 |
| AER-O-FIRE +flames |
5 |
| AER-O-MATE |
10 |
| AFDOZ-O |
5 |
| AFLON-O |
5 |
| AGEFIX-O |
5 |
| AGGARWAL A.O.M. SARV UTTAM |
31 |
| AGS O |
14 |
| AIR O FIT +spiral & square |
44 |
| AIR-O-FRESH |
3 |
| AIR-O-POT |
20 |
| AIR-O-SENSE |
9 |
| AIR-O-SPACE 5 IN 1 |
20 |
| AIR-O-TRAC |
10 |
| AIT-O-MATIC |
12 |
| ALCYCLIN O |
5 |
| ALERT-O-GUARD +eye |
45 |
| ALG-O-CIDE |
5 |
| ALGESIN-O |
5 |
| ALL O DAY |
21 |
| ALL GOLD V.S.O.P brandy |
33 |
| ALL INDIA MUSLIM O.B.C. |
42 |
| ALTIPOD O |
5 |
| AMBEY RELOX-O |
5 |
| AMBR-O-ZZIA |
32 |
| AMERICAN BLEND D.O +horses |
34 |
| AMIN O FIRE |
5 |
| AMMAJI O-KRISSH |
30 |
| AMP-O-LECTRIC |
7 |
| AMUL MILK-O-GOLD |
31 |
| AMUL MILK-O-SILVER |
31 |
| ANA-O |
5 |
| ANIL-O |
5 |
| ANT 'O' CID |
5 |
| ANUPAM AQUA ZEST-O-FIZZ |
32 |
| AO-O |
2 |
| AOV-O +heart |
32 |
| APP-O-LIV |
5 |
| AQUA FINE R.O. SYSTEM +oval |
11 |
| ARACHITOL-O |
5 |
| ARB-O |
5 |
| ARBICEF-O |
5 |
| ARDOUR O |
25 |
| AREXCEF-O |
5 |
| ARI O'ROTTI |
43 |
| ARM-O-GUARD +guns & circle |
4 |
| ARPIMUNE-O |
5 |
| ART O HEART |
19 |
| ART 'O' NAIL |
35 |
| ART-O-CRAFT |
14 |
| ASAKI-O |
8 |
| ASHU O.A. KNEE BRACE |
10 |
| ASOS ARUL SERVICE O SERVICE |
37 |
| ASPOXIM-O |
5 |
| ASTREAK-O |
5 |
| ASTRING O SOL |
5 |
