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Latest patent filings: Sound-tuning, sound-analysis and adjustable irons

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It’s been a few months since we took a peek at the technologies major OEMs are working on. In an ever-increasingly competitive space amid an industry in contraction, OEMs seem to be digging deeper and going bolder to attract consumers (Callaway’s driver with a spoiler from the July edition of this series comes to mind here).

In a survey of what’s recently been made available for public consumption, that trend continues.

Let’s take a look at how our friends in Fairhaven, Carlsbad, Fort Worth and Phoenix are pushing the envelope.

TaylorMade: Multi-layer face insert

Golf club head - TMAG

TaylorMade is working on a driver with a multi-layer face insert that includes the prepreg plies technology we discussed in a previous installment in this series. The filing also makes mention of an “undercut fill structure,” which “can include at least three ribs equidistantly spaced from each other.”

TaylorMade: Contrast-enhanced club heads

Contrast-enhanced golf club heads - TMAG

TMag is also looking at “contrast enhanced” crowns. As the company’s filing states, “new approaches that permit more accurate and repeatable alignment are needed.” The filing also makes clear that the both black and white crowns are being developed.

Callaway: Adjustable iron-type golf club head

Adjustable iron-type golf club head

Callaway is exploring a highly adjustable iron head. As you can see from the image above, multiple sections can be adjusted. The filing refers to “features that allow for the adjustment of the principal moment of inertia angle and/or turf interaction, including an adjustable weight cartridge or an adjustable sole plate and a lightweight face.”

Callaway: Multi-material putter

Multiple material putter-CALLY

The Carlsbad-based company is also working on a “multiple material putter having a high moment of inertia and a low center of gravity,” according to another filing.

The filing further states: “Most putters are constructed in such a way that the head is made from a single type of parent material, such as steel. There is a need for putters that have increased moments of inertia and low centers of gravity.”

Titleist: A workable and forgiving iron

Set of golf clubs-Titleist

Moving on to Titleist’s R&D efforts: The company is continuing to work on cavity-backed players irons that offer more forgiveness and more workability at the same time. A lengthy paragraph from the filing lays this out in detail.

Previous game improvement club heads have relatively higher MOI-Y, at the expense of a higher MOI-SA because they are relatively large. Generally, better players have a tendency to prefer golf clubs having a lower MOI-SA so that they can control the orientation of the club head throughout the swing with greater ease….There remains a need in the art for an improved iron-type golf club. In particular, there is a need for an iron-type golf club that provides a lower MOI-SA in combination with a higher MOI-Y.

Titleist: Optimizing club heads for sound

Golf club head optimized for sound-Titleist

Titleist is also working on a driver that’s sound is “is aesthetically pleasing when the golf club head impacts the golf ball.” The filing indicates that today’s large, flat driver typically produce lower frequency sounds, which golfers, according to Titleist, don’t like.

Ping: Tuneable everything

Club head sets with varying characteristics and related methods-PING

The denizens of Phoenix are toying with irons with multiple adjustable weights, as a recent filing makes mention of. The filing further suggests that loft can be tinkered with.

Nike: Actually analyzing impact through soundImpact and sound analysis for golf equipment-NIKE

If you remember the “microwavable golf ball” Nike applied for a patent that we mentioned a few months ago, then this might not surprise you: Nike is working on technology to analyze impact sound to “determine one or more characteristics of the impact, and generating an output based on the determined impact characteristic.”

What does that mean? A few paragraphs in the filing sheds a little light on what Nike’s up to:

“The amplitudes and frequencies of the audio signal may be analyzed to determine various characteristics such as a magnitude of compression of the golf ball, an impact location on the surface and/or a speed with which the surface impacts the golf ball.

“The determined characteristics may be used, in some arrangements, to determine a golf ball impact location on the surface of the golf club head. Alternatively or additionally, the characteristics may be used to identify a type of golf ball best suited for a particular user (and/or, e.g., golf club head speed). In yet other arrangements, the determined characteristics, such as golf ball compression, may be used to insure the quality of a golf ball.

“According to other aspects, a mobile communication device may be configured to detect golf ball impact sounds and to determine the various impact characteristics. In one example, a mobile communication device may record the sound of a golf ball impact and to visually indicate the golf ball impact location against a golf club head.”

Ben Alberstadt is the Editor-in-Chief at GolfWRX, where he’s led editorial direction and gear coverage since 2018. He first joined the site as a freelance writer in 2012 after years spent working in pro shops and bag rooms at both public and private golf courses, experiences that laid the foundation for his deep knowledge of equipment and all facets of this maddening game. Based in Philadelphia, Ben’s byline has also appeared on PGATour.com, Bleacher Report...and across numerous PGA DFS and fantasy golf platforms. Off the course, Ben is a committed cat rescuer and, of course, a passionate Philadelphia sports fan. Follow him on Instagram @benalberstadt.

15 Comments

15 Comments

  1. Joe Golfer

    Oct 16, 2014 at 1:13 am

    Ralph Maltby of Golfworks has been selling irons for quite some time that have adjustable weights in the heel and toe.
    I think their latest is the Maltby KE4 iron head, which can be seen at the Golfworks site.
    I’m not advocating it, as I don’t know anyone who has ever tried one.
    I’m just saying that adjustable irons in this weighting respect have existed already for many years now.

  2. Archie Bunker

    Oct 14, 2014 at 4:26 pm

    These patents are technically worthless, and only provide marketing direction to sell more product. I can only imagine the absurd claims that will be made for these “breakthroughs” in the future.

  3. nikkyd

    Oct 12, 2014 at 8:39 pm

    I like the adjustable bounce on the callys. I was just thinking that the other day. Why couldnt a guy weld a flange on the sole of an old set of blades ? Callaway has done it. Bravo.

  4. BigBoy

    Oct 12, 2014 at 6:31 pm

    the sheer stupidity of manufacturers today, it knows no bounds to that stupidity.

  5. Tom

    Oct 12, 2014 at 11:50 am

    From the looks of the design concepts, it would appear that there is more on the clubs that can break or fall off.

  6. Jay

    Oct 12, 2014 at 10:47 am

    Adjustable irons are ridiculous. Get fit for length,loft and lie and call it good. More does not equal better.

  7. moses

    Oct 11, 2014 at 8:18 pm

    Hmmm. If only the USGA would let us have COR .860 it would save the golf equipment industry for the next 10 years.

    • No

      Oct 12, 2014 at 2:50 am

      No, it wouldn’t. It would make it worse.

      • Joe Golfer

        Oct 16, 2014 at 1:08 am

        @No
        the comment by @Moses was meant to be sarcastic.

  8. Shelton Cooper

    Oct 11, 2014 at 7:38 pm

    So Nike will just be using the Mizuno harmonic impact technology then. Does Mizuno not have a patent on that already?

    • Josh

      Oct 11, 2014 at 7:52 pm

      That is different. Mizuno’s tech is about making the feel and sound good to the player. Nike’s idea is about actually determining where the ball hit on the club face or how much compression a player got from the ball. From what it reads it sounds like it will be an app based on sound. So instead of using impact tape or a high speed camera to determine where the ball hit on the face, the app will determine it based on the impact sound.

      • RAT

        Oct 11, 2014 at 9:23 pm

        I can do this myself. I can tell by sound and feel that it was a good strike or not.

    • MHendon

      Oct 11, 2014 at 9:49 pm

      Patents have become a joke and are virtually worthless.

      • 1badbadger

        Oct 18, 2014 at 4:18 am

        I think some of these IDEAS are a joke, but patents can be very valuable. Golf equipment companies will aggressively protect their intellectual property, and if a competitor infringes on another manufacturer’s patents the settlements can be in the hundreds of millions of dollars.

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Equipment

Tour Edge unveils all-new Exotics mini driver

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Tour Edge Golf has today introduced the all-new Exotics mini driver, engineered to deliver a powerful combination of speed, control, and versatility in the long game. 

The Exotics Mini combines a titanium face with a stainless-steel body in design to balance ball speed with stability and control, creating a versatile option at the top end of the bag. 

At the core of the design is Tour Edge’s proprietary Combo Brazing technology, a high-precision thermal bonding process that seamlessly fuses a titanium cup face to a stainless-steel body into a single, continuous structure. By eliminating energy loss found in traditional multi-piece constructions, Combo Brazing is designed to deliver faster face response, more efficient energy transfer, and a uniquely powerful yet controlled feel.

The multi-material construction also allows mass to be positioned lower and deeper in the head in a bid to increase stability, while the thin titanium face is engineered to maintain ball speed across a wider impact area.

“While the initial goal was to enhance control and versatility in the long game, Combo Brazing ultimately drove measurable gains in ball speed and distance within the mini driver category. In robot testing, we’ve documented higher ball speeds, higher launch, reduced spin, and increased carry and total distance compared to leading models.” – Vice President of R&D Matt Neeley

In addition to distance performance, the Exotics mini emphasizes forgiveness through a heavier stainless-steel body that shifts mass toward the perimeter. This configuration increases MOI relative to traditional all-titanium mini drivers, helping preserve ball speed and directional stability on off-center strikes. Paired with Pyramid Face Technology from the Exotics metalwood line, the design is intended to support consistent speed across the face.

To further enhance MOI, a lightweight carbon fiber crown frees additional mass that is strategically repositioned low and deep in the head in design to improve stability and promote optimal launch with controlled spin.

“We designed the Mini to be about five millimeters shallower than other mini drivers on the market. That change improves playability off the deck. From a clean fairway lie, it can function as a strong 3-wood alternative while still providing control off the tee.” – Tour Edge CEO David Glod

An adjustable hosel system allows for loft and lie tuning to dial in trajectory and shot shape, while a fixed 13-gram rear weight helps stabilize the head through impact to improve dispersion consistency. The Exotics Mini Driver is available in 11.5 and 13.5-degree lofts in right-handed models.

Pricing & Availability

The Exotics Mini Driver is available for pre-order beginning today for $399.99 USD at touredge.com, and will be available for purchase at retail outlets worldwide on May 22, 2026. 

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Equipment

Srixon ZXi combo or TaylorMade P7CB/770 combo? – GolfWRXers discuss

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In our forums, our members have been pitting a Srixon ZXi combo against a TaylorMade P7CB/770 combo. WRXer ‘edutch22’ is on the hunt for a new set of irons and kicks off the thread saying:

“Looking at picking up a new set of irons and think I’ve narrowed it down to Srixon ZXi combo or Taylormade P7CB/770 combo. I am currently a 5 cap and allbeit I feel irons are my weakness. My miss is a little to the toe side. I am decently steep at 4-5 down. Always thought I am high spin but recently on trackman my 7 was spinning at 5800 roughly. 

My question or looking for thoughts on which one would benefit me more from a forgiveness standpoint? Or is there another iron is should be looking at entirely? I only get to play about once or twice a week, if I am not playing a 2-3 day event. Thanks in advance.”

And our members have been sharing their thoughts and suggestions in response.

Here are a few posts from the thread, but make sure to check out the entire discussion and have your say at the link below.

  • manima1: “You just can’t go wrong with Srixon ZXi7.”
  • MattM97: “You have to hit them to know, the V-Sole on the Srixon can be make or break for many.”
  • dmeeksDC: “P7CB is more forgiving for me than ZXi7 because my main miss is low middle and the P7CB still flies and spins great on that miss. These are both really nice irons but I like the P7CB more than the Zxi7 and the P770 (or P790) more than the Zxi5. The Srixons are larger so if that gives you confidence that is the way to go. I don’t feel like I get any benefit from the V-sole and the P7CBs live up to their high Maltby forgiveness rating so the TaylorMades have been great for me.”

Entire Thread: “Srixon ZXi combo or TaylorMade P7CB/770 combo? – GolfWRXers discuss”

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Equipment

From the GolfWRX Classifieds: 2024 Wilson Staff CB/Blade combo

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At GolfWRX, we are a community of like-minded individuals who all experience and express our enjoyment of the game in many ways.

It’s that sense of community that drives day-to-day interactions in the forums on topics that range from best driver to what marker you use to mark your ball. It even allows us to share another thing we all love – buying and selling equipment.

Currently, in our GolfWRX buy/sell/trade (BST) forum, @pianoman0123 has a 2024 Wilson Staff CB/Blade combo up for grabs.

From the listing: “2024 Wilson Staff CB/Blade Combo.  4-8 irons are CB’s and the 9,PW are Blades.  5-PW have Project X 6.0 Shafts and the 4 Iron has a Steelfiber CW110 Stiff Shaft.   Standard Length, Lie and Lofts.  These are in very good condition the shafts just don’t work for me.  Like new Lamkin Grips on the 5-PW and a stock Golf Pride on the 4 Iron. $525 OBO.”

To check out the full listing in our BST forum, head through the link. If you are curious about the rules to participate in the BST Forum, you can learn more here: GolfWRX BST Rules

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