| Trademark / Brand Name |
Class(es) |
| SIGMA electricals |
35 |
| SIGMA electro systems |
9 |
| SIGMA food products |
29 |
| SIGMA gold |
25 |
| SIGMA gold +sigma |
14 |
| SIGMA in devnagari |
7 |
| SIGMA inc +oval |
35 |
| SIGMA manpower & marketing |
16 |
| SIGMA mild steel electrodes |
9 |
| SIGMA pantothenate |
5 |
| SIGMA plus +oval |
9 |
| SIGMA rich foam |
3 |
| SIGMA'S EVER DAY spices |
30 |
| SIGMA'S EVERSPICE +hills |
30 |
| SIGMA'S EVERYDAY +squares |
30 |
| SIGMA'S EVERYDAY spices |
30 |
| SIGMA'S MILLER |
1 |
| SIGMA'S ROOT ZONE +plant |
35 |
| SIGMA-CHEME |
1 |
| SIGMA-L SIGMA LINK |
6, 7, 10, 19 |
| SIGMA-TAU +square |
5, 41, 42 |
| SIGMA-VII COMPUTERS +globe |
41 |
| SIGMA-byte COMPUTERS +squar |
9 |
| SIGMA-ct |
5 |
| 1 SIGMA ONE +square |
37 |
| 12 SIGMA +sigma & squares |
20 |
| 6TH SENSE 6 SIGMA +organs |
42 |
| AGIP SIGMA TRUCK |
4 |
| AJ SIGMA +ovals |
7 |
| AKEY SIGMA supari |
31 |
| AQUA FAMILY SIGMA |
11 |
| AV SIGMA |
9 |
| BAHADUR SIGMA +squares |
25 |
| BAJAJ SIGMA |
12 |
| BENCHMARK 6 IX SIGMA |
41 |
| BLOOM SIGMA |
19 |
| DAIKYO D SIGMA INNOVATION |
10, 17, 20, 21 |
| DIAMOND SIGMA +square |
12 |
| E SIGMA |
16 |
| E SIGMA +square |
9 |
| E SIGMA CHECK +tick & oval |
9 |
| E SIGMA CORPORATION |
9 |
| E SIGMA INDX +sigma |
9 |
| E SIGMA ROLLERS +circles |
17 |
| E PLANET SIGMA +arcs |
41 |
| E-SIX SIGMA +line |
41 |
| EMS SIGMA |
9 |
| ENI I-SIGMA |
4 |
| GOLD SIGMA +arrows |
9 |
| GRL INTERNATIONAL SIGMA |
12 |
| GRL INTERNATIONAL SIGMA DLX |
12 |
| LEAN SIX SIGMA IN NUTSHELL |
16 |
| MU APT SIGMA APTITUDE +face |
42 |
| MU APT MU SIGMA +arcs & fac |
42 |
| MU APT MU SIGMA +arrows fac |
41 |
| MU APT MU SIGMA APTITUDE |
35, 41, 44 |
| MUAPT MU SIGMA +arrows face |
35 |
| MUAPT MU SIGMA APTITUDE TES |
9 |
| NUSUN SIGMA |
31 |
| OPTO SIGMA |
9 |
| PROXANA SIGMA-TAU |
5 |
| S SIGMA |
9 |
| S SIGMA +arcs |
35 |
| S SIGMA +bird |
22 |
| S SIGMA COMBUSTION +arcs |
11 |
| S SIGMA SYNTHETICS +flower |
24 |
| S SIGMATHANE SIGMA +square |
40 |
| SA SIGMA +triangle |
16 |
| SAA SIGMA AVIATION ACADEMY |
41 |
| SAP SIGMA AGRI PRODUCTS |
5 |
| SC SIGMA |
4 |
| SC SIGMA BIRLLA +circles |
2 |
| SCA SIGMA CAREER ACADEMY |
41 |
| SCI SIGMA +square |
1 |
| SCI SIGMA CHEMICAL +flask |
1 |
| SI SIGMA +square |
7 |
| SI SIGMA INSTRUMENTS +squar |
9 |
| SIGMA-L SIGMA LINK |
6, 7, 10, 19 |
| SINGHSON SIGMA |
28 |
| SIRFKEVAL SIGMA |
9, 35, 41, 44 |
| SIX SIGMA |
16, 41 |
| SIX SIGMA +arcs & oval |
7 |
| SIX SIGMA 6 +sigma & square |
41 |
| SIX SIGMA 60 |
16 |
| SIX SIGMA ALCHEMY |
16, 41 |
| SIX SIGMA ALCHEMY +sigma |
16, 35 |
| SIX SIGMA DENTISTRY |
44 |
| SIX SIGMA EDUCATION +arc |
41 |
| SIX SIGMA PERSON |
42 |
| SIX SIGMA e-governance |
42 |
| SK SIRFKEVAL SIGMA +circles |
10, 35, 41, 44 |
| SP SIGMA |
9 |
| SP SIGMA P.G. +oval |
2 |
| SRP SIGMA RUBBER PRODUCTS |
17 |
| SS SIGMA +stripes & square |
20 |
| SS SIGMA SURGICALS +oval ar |
10 |
| SS SIX SIGMA |
32 |
| SSQI SIX SIGMA +globe & ova |
35 |
| SUN SIGMA |
1 |
| SUREE SIGMA +oval |
25 |
