GOLF CLUB HEADS AND METHODS TO MANUFACTURE GOLF CLUB HEADS

1 . A golf club head comprising:

a plurality of weight portions, at least one weight portion of the plurality of weight portions having a first material;

a body portion having a second material different form the first material, the body portion having a face portion, a toe portion, a heel portion, a top portion, a sole portion, a back portion with a back wall portion, a plurality of ports, and an interior cavity, at least one port of the plurality of ports being connected to the interior cavity, the interior cavity being partially or entirely filled with a polymer material through the at least one port;

wherein each port of the plurality of ports is associated with a port length and at least one port of the plurality of ports is configured to receive a weight portion of the plurality of weight portions;

wherein any two adjacent ports of the plurality of ports are separated by less than the port length of any of the two adjacent ports, and

wherein at least one of the ports of the plurality of ports is farther from the top portion than the sole portion.

2 . A golf club head as defined in claim 1 , wherein the first material comprises tungsten.

3 . A golf club head as defined in claim 1 , wherein the polymer material is an elastic polymer material.

4 . A golf club head as defined in claim 1 , wherein a thickness of the face portion is less than or equal to about 1.9 millimeters (0.075 inch).

5 . A golf club head as defined in claim 1 , wherein at least one of the ports of the plurality of ports is farther from the heel portion than the toe portion.

6 . A golf club head as defined in claim 1 , wherein the face portion includes a first thickness and a second thickness less than the first thickness.

7 . A golf club head as defined in claim 1 , wherein the plurality of ports comprises a first port and a second port, and wherein the port length of the first port is greater than the port length of the second port.

8 . A golf club head comprising:

a body portion having a face portion, a toe portion, a top portion, a sole portion, a back portion with a back wall portion, and an interior cavity;

a polymer material injected into the interior cavity through an opening at or proximate to a periphery of the body portion to at least partially structurally support the face portion during impact with a golf ball;

a first set of weight portions being associated with a first total mass, the first set of weight portions including at least one weight portion; and

a second set of weight portions being associated with a second total mass being greater than the first total mass, the second set of weight portions including at least one weight portion,

wherein at least 50% of the polymer material in the interior cavity is located below a horizontal midplane of the body portion.

9 . A golf club head as defined in claim 8 , wherein at least one weight portion of the first set of weight portions is made of tungsten.

10 . A golf club head as defined in claim 8 , wherein at least one weight portion of the second set of weight portions is made of tungsten.

11 . A golf club head as defined in claim 8 , wherein the polymer material is an elastic polymer material.

12 . A golf club head as defined in claim 8 , wherein a thickness of the face portion is less than or equal to about 1.9 millimeters (0.075 inch).

13 . A golf club head as defined in claim 8 further comprising at least another opening located at or below the horizontal midplane.

14 . A golf club head as defined in claim 8 , wherein the face portion includes a first thickness and a second thickness less than the first thickness.

15 . A golf club head comprising:

a first portion made of a first material and associated with a first mass, the first portion having at least one groove, a first surface, a second surface opposite of the first surface, and a width between the first and second surfaces of less than or equal 1.9 millimeters (0.075 inch);

a second portion made of a second material and associated with a second mass, the second portion having a height, a hosel portion, a back portion having a back wall portion, and an interior cavity;

a plurality of third portions associated with a third mass, at least one portion of the third portions is made of a third material and coupled to the second portion;

a fourth portion located at a distance from the hosel portion, the fourth portion having an opening configured to receive at least one portion of the plurality of third portions,

wherein the interior cavity is partially or entirely filled with a fourth material different than the first material or the second material, the fourth material being associated with a fourth mass,

wherein the second mass is greater than the first mass,

wherein the second mass is greater than the third mass,

wherein the second mass is greater than the fourth mass, and

wherein at least one portion of the plurality of third portions is located at below a horizontal midplane of the body portion.

16 . A golf club head as defined in claim 15 , wherein the first material comprises a material being the same as the second material.

17 . A golf club head as defined in claim 15 , wherein the third material comprises a material being the same as the first material or the second material.

18 . A golf club head as defined in claim 15 , wherein the fourth material is an elastic polymer material.

19 . A golf club head as defined in claim 15 , wherein portions of the interior cavity filled with the fourth material comprise a first thickness and a second thickness greater than the first thickness.

20 . A golf club head as defined in claim 15 , wherein at least one portion of the plurality of third portions is made of tungsten.